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WorksheetsYear 8/9 - Atomic Structure
Total questions: 97
Worksheet time: 2hrs 34mins
List the items you should bring into the lab for non-practical lessons.
Notebook and pen
Lab coat and goggles
Calculator and ruler
Textbook and highlighter
True or False: You can bring food and drink into the lab.
True
False
What should you do if there is a spill in the lab?
Clean it up immediately without any protective gear.
Inform the teacher and follow the safety protocols.
Ignore it and continue working.
Leave the lab immediately without informing anyone.
All matter is composed of:
Atoms
Cells
Molecules
Compounds
The basic structure of the atom can be shown by:
a diagram of the nucleus and electron cloud
a chemical equation
a periodic table
a molecular formula
What are the attributes of sub-atomic particles?
Mass, charge, and spin
Color, taste, and smell
Size, shape, and texture
Temperature, pressure, and volume
The atomic structure of an atom determines its place in the periodic table based on:
The number of protons in the nucleus
The number of neutrons in the nucleus
The number of electrons in the outer shell
The atomic mass of the atom
The 'atomic number', 'mass number', and 'neutron number' of elements are:
atomic number is the number of protons, mass number is the sum of protons and neutrons, neutron number is the difference between mass number and atomic number
atomic number is the sum of protons and neutrons, mass number is the number of protons, neutron number is the difference between mass number and atomic number
atomic number is the number of neutrons, mass number is the sum of protons and neutrons, neutron number is the number of protons
atomic number is the number of electrons, mass number is the sum of electrons and neutrons, neutron number is the difference between mass number and atomic number
Electronic shells are filled in a specific order. How does this order relate to their position on the periodic table?
They are filled randomly, unrelated to the periodic table.
They are filled in order of increasing energy levels, which corresponds to their position on the periodic table.
They are filled in order of decreasing energy levels, which corresponds to their position on the periodic table.
They are filled based on atomic mass, unrelated to the periodic table.
Isotopes are atoms of the same element with different numbers of what?
Protons
Neutrons
Electrons
Nuclei
What is 'Carbon Dating'?
A method for determining the age of an object containing organic material by using the properties of radiocarbon.
A technique for measuring the carbon content in the atmosphere.
A process of converting carbon dioxide into organic compounds by living organisms.
A method for dating rocks and minerals using radioactive isotopes.
An atom is the smallest unit of matter that retains the properties of an element.
A molecule
A cell
An atom
A compound
The nucleus is:
the central part of an atom containing protons and neutrons
a type of cell organelle responsible for photosynthesis
a molecule that stores genetic information
a type of chemical bond
What is a Shell in atomic structure?
A region around the nucleus where electrons are likely to be found
The central part of an atom containing protons and neutrons
A type of chemical bond between atoms
A subatomic particle with a positive charge
A proton is:
a negatively charged particle
a positively charged particle
a neutral particle
a subatomic particle with no charge
A neutron is:
a positively charged particle
a negatively charged particle
a neutral particle
a particle with variable charge
An Electron is:
a subatomic particle with a negative charge
a type of chemical element
a molecule found in the nucleus
a positively charged ion
What is a Period in the periodic table?
A horizontal row in the periodic table
A vertical column in the periodic table
A group of elements with similar properties
A single element in the periodic table
What is a Group in the periodic table?
A row of elements in the periodic table
A column of elements in the periodic table
A single element in the periodic table
A block of elements in the periodic table
What is an Atomic number?
The number of protons in the nucleus of an atom
The number of neutrons in the nucleus of an atom
The total number of protons and neutrons in an atom
The number of electrons in a neutral atom
What is a Mass number?
The total number of protons in an atom
The total number of neutrons in an atom
The total number of protons and neutrons in an atom
The total number of electrons in an atom
What is a Neutron number?
The number of protons in an atom
The number of electrons in an atom
The number of neutrons in an atom
The atomic mass of an atom
What is the atomic number of Hydrogen?
1
2
3
4
Which element has the symbol 'He'?
Helium
Hydrogen
Oxygen
Carbon
What is the relative atomic mass of Lithium?
6.94
3.00
12.01
1.01
Which element is in Group 2 and Period 3?
Magnesium
Sodium
Aluminum
Silicon
What is the symbol for the element with atomic number 8?
O
C
N
H
What is the charge of a proton?
Fill in the blank: Electrons have a _______ charge and no mass.
negative
positive
neutral
heavy
Which subatomic particle has nearly 0 mass?
What is the central part of an atom called?
Consider the atom of Beryllium, Be, it has four protons, five neutrons and four electrons. How many protons does it have?
Four
Five
Six
Seven
An atom has a central n__________. This is surrounded by e__________ arranged in shells. The nucleus is tiny compared to the atom as a whole.
nucleus; electrons
nucleus; protons
core; electrons
center; neutrons
Fill in the table: Nº of protons = 4, Charge = +4 Nº of neutrons = 5, Charge = 0 Nº of electrons = 4, Charge = -4 Total charge = 0, Neutral!
The question is asking to fill in a table with information about protons, neutrons, electrons, and their respective charges.
The question is asking to calculate the atomic mass of an element.
The question is asking to determine the element based on the number of protons.
The question is asking to find the number of valence electrons.
An atom is _______ than a bacterium.
smaller
bigger
Is the radius of a human hair smaller or bigger than an atom?
Smaller than an atom
Bigger than an atom
In what year did James Chadwick discover neutrons?
Who demonstrated the existence of the atomic nucleus in 1909?
What did Rutherford and others discover in 1919?
Niels Bohr's proposal in 1922 regarding electron shells was:
Electrons orbit the nucleus in fixed paths called shells.
Electrons are scattered randomly around the nucleus.
Electrons do not exist in shells but in a cloud.
Electrons have no specific location around the nucleus.
Murray Gell-Mann and George Zweig suggested in 1964:
The existence of quarks
The theory of relativity
The uncertainty principle
The law of gravitation
What was discovered at the Large Hadron Collider in 2015?
Higgs boson
Pentaquark
Gravitational waves
Neutrino oscillations
Who proposed that all matter is made of indestructible particles he called atoms?
In what year did Antoine Lavoisier list 92 different types of matter known today as 'elements'?
1789
1777
1794
1801
Who said that elements consist of identical atoms and different elements combine to make compounds?
Who created the Periodic Table?
Who discovered the electron and developed the plum-pudding model of the atom?
Who coined the term 'isotope'?
Who found out the charge of the electron?
Who demonstrated the existence of the atomic nucleus?
Who discovered the proton?
Who proposed that the outer shell held more electrons than the inner shell?
Why is it only in the last century that our understanding of atomic structure has really developed?
Advancements in technology and scientific methods
Increased interest in chemistry
Discovery of new elements
Better educational systems
Today's model for atomic structure is based on which scientist's theory?
Democritus
Niels Bohr
Albert Einstein
Isaac Newton
Atoms consist of a central .............................. containing protons and .............................. .
nucleus, neutrons
core, electrons
center, ions
hub, particles
The nucleus is .............................. compared to the size of the whole atom.
The nucleus is small compared to the size of the whole atom.
The nucleus is large compared to the size of the whole atom.
The nucleus is the same size as the whole atom.
The nucleus is larger than the whole atom.
The nucleus is surrounded by .............................. in energy levels (also called ..............................).
The nucleus is surrounded by electrons in energy levels (also called shells).
The nucleus is surrounded by protons in energy levels (also called shells).
The nucleus is surrounded by neutrons in energy levels (also called shells).
The nucleus is surrounded by atoms in energy levels (also called shells).
Atoms have no electric charge because they contain the same number of protons and .............................. .
neutrons
electrons
molecules
ions
The electrons are arranged in energy levels (..............................).
The electrons are arranged in energy levels.
The electrons are arranged in random patterns.
The electrons are arranged in a straight line.
The electrons are arranged in a circular path.
Atomic number = number of ..............................
protons in the nucleus of an atom.
electrons in a neutral atom.
neutrons in the nucleus of an atom.
atoms in a molecule.
Mass number = number of .............................. + number of ..............................
protons; neutrons
protons; electrons
neutrons; electrons
electrons; positrons
Number of protons = ..............................
1
2
3
4
Number of neutrons = ..............................
Number of neutrons
Number of protons
Number of electrons
Atomic number
Number of electrons = ..............................
Number of electrons
Number of protons
Number of neutrons
Number of atoms
All atoms of the same e__________ have the same number of p__________; hence atoms of d__________ elements have different n__________ of protons. Fill in the blanks.
Considering the rule that all carbon atoms have 6 protons and all calcium atoms have 20 protons, how many protons would the following elements have? Fill in the table: Name of Element: Nitrogen, Number of Protons: ______ Name of Element: Hydrogen, Number of Protons: ______ Name of Element: Iron, Number of Protons: ______ Name of Element: Potassium, Number of Protons: ______
You may have wondered what keeps electrons around the nucleus?
Gravitational force
Electromagnetic force
Nuclear force
Weak force
What is the mass number of Nitrogen?
14
15
16
17
What is the mass number of Iron?
56
54
58
60
What is the mass number of Lithium?
6
7
8
9
What is the mass number of Argon?
36
38
40
42
The difference between atomic number and mass number is:
Atomic number is the number of protons in an atom, while mass number is the total number of protons and neutrons.
Atomic number is the total number of protons and neutrons, while mass number is the number of protons.
Atomic number is the number of electrons, while mass number is the number of protons and neutrons.
Atomic number is the number of neutrons, while mass number is the number of protons.
Using the tables you have just completed, how many Neutrons does Magnesium have? Show your working.
10
12
14
16
Calculate the number of protons, neutrons, and electrons in the following atom: Nitrogen. Fill in the table with the correct numbers.
Protons: 7, Neutrons: 7, Electrons: 7
Protons: 6, Neutrons: 6, Electrons: 6
Protons: 8, Neutrons: 8, Electrons: 8
Protons: 7, Neutrons: 8, Electrons: 7
Calculate the number of protons, neutrons, and electrons in the following atom: Fluorine. Fill in the table with the correct numbers.
Protons: 9, Neutrons: 10, Electrons: 9
Protons: 10, Neutrons: 9, Electrons: 10
Protons: 9, Neutrons: 9, Electrons: 9
Protons: 8, Neutrons: 10, Electrons: 8
Calculate the number of protons, neutrons, and electrons in the following atom: Hydrogen. Fill in the table with the correct numbers.
Protons: 1, Neutrons: 0, Electrons: 1
Protons: 1, Neutrons: 1, Electrons: 1
Protons: 0, Neutrons: 1, Electrons: 0
Protons: 1, Neutrons: 0, Electrons: 0
Calculate the number of protons, neutrons, and electrons in the following atom: Barium. Fill in the table with the correct numbers.
The number of protons in Barium is 56, the number of neutrons is 81, and the number of electrons is 56.
The number of protons in Barium is 55, the number of neutrons is 81, and the number of electrons is 55.
The number of protons in Barium is 56, the number of neutrons is 82, and the number of electrons is 56.
The number of protons in Barium is 57, the number of neutrons is 81, and the number of electrons is 57.
Complete the table for Hydrogen: Symbol - H, Mass No - 1, Atomic No - 1, No of protons - ____, No of neutrons - ____, No of electrons - ____
No of protons - 1, No of neutrons - 0, No of electrons - 1
No of protons - 0, No of neutrons - 1, No of electrons - 1
No of protons - 1, No of neutrons - 1, No of electrons - 0
No of protons - 1, No of neutrons - 1, No of electrons - 1
Complete the table for Helium: Symbol - He, Mass No - 4, Atomic No - 2, No of protons - ____, No of neutrons - ____, No of electrons - ____
No of protons - 2, No of neutrons - 2, No of electrons - 2.
No of protons - 1, No of neutrons - 3, No of electrons - 2.
No of protons - 2, No of neutrons - 1, No of electrons - 2.
No of protons - 3, No of neutrons - 1, No of electrons - 3.
Complete the table for Lithium: Symbol - Li, Mass No - 7, Atomic No - 3, No of protons - ____, No of neutrons - ____, No of electrons - ____
No of protons - 3, No of neutrons - 4, No of electrons - 3.
No of protons - 4, No of neutrons - 3, No of electrons - 4.
No of protons - 3, No of neutrons - 3, No of electrons - 4.
No of protons - 4, No of neutrons - 4, No of electrons - 3.
Complete the table for Beryllium: Symbol - Be, Mass No - 9, Atomic No - 4, No of protons - ____, No of neutrons - ____, No of electrons - ____.
No of protons - 4, No of neutrons - 5, No of electrons - 4.
No of protons - 5, No of neutrons - 4, No of electrons - 5.
No of protons - 4, No of neutrons - 4, No of electrons - 4.
No of protons - 5, No of neutrons - 5, No of electrons - 5.
Complete the table for Boron: Symbol - B, Mass No - 11, Atomic No - 5, No of protons - ____, No of neutrons - ____, No of electrons - ____
No of protons - 5, No of neutrons - 6, No of electrons - 5.
No of protons - 6, No of neutrons - 5, No of electrons - 6.
No of protons - 5, No of neutrons - 5, No of electrons - 5.
No of protons - 6, No of neutrons - 6, No of electrons - 5.
Complete the table for Carbon: Symbol - C, Mass No - 12, Atomic No - 6, No of protons - ____, No of neutrons - ____, No of electrons - ____
Complete the table for Nitrogen: Symbol - N, Mass No - 14, Atomic No - 7, No of protons - ____, No of neutrons - ____, No of electrons - ____
Symbol - N, Mass No - 14, Atomic No - 7, No of protons - 7, No of neutrons - 7, No of electrons - 7.
Symbol - N, Mass No - 14, Atomic No - 7, No of protons - 6, No of neutrons - 8, No of electrons - 7.
Symbol - N, Mass No - 14, Atomic No - 7, No of protons - 7, No of neutrons - 6, No of electrons - 8.
Symbol - N, Mass No - 14, Atomic No - 7, No of protons - 8, No of neutrons - 7, No of electrons - 6.
Complete the table for Oxygen: Symbol - O, Mass No - 16, Atomic No - 8, No of protons - ____, No of neutrons - ____, No of electrons - ____
Symbol - O, Mass No - 16, Atomic No - 8, No of protons - 8, No of neutrons - 8, No of electrons - 8.
Symbol - O, Mass No - 16, Atomic No - 8, No of protons - 7, No of neutrons - 9, No of electrons - 8.
Symbol - O, Mass No - 16, Atomic No - 8, No of protons - 8, No of neutrons - 7, No of electrons - 9.
Symbol - O, Mass No - 16, Atomic No - 8, No of protons - 9, No of neutrons - 8, No of electrons - 7.
Complete the table for Fluorine: Symbol - F, Mass No - 19, Atomic No - 9, No of protons - ____, No of neutrons - ____, No of electrons - ____
No of protons - 9, No of neutrons - 10, No of electrons - 9
No of protons - 10, No of neutrons - 9, No of electrons - 10
No of protons - 9, No of neutrons - 9, No of electrons - 9
No of protons - 10, No of neutrons - 10, No of electrons - 9
Complete the table for Neon: Symbol - Ne, Mass No - 20, Atomic No - 10, No of protons - ____, No of neutrons - ____, No of electrons - ____
No of protons - 10, No of neutrons - 10, No of electrons - 10.
No of protons - 10, No of neutrons - 11, No of electrons - 10.
No of protons - 11, No of neutrons - 10, No of electrons - 11.
No of protons - 10, No of neutrons - 9, No of electrons - 10.
Complete the table for Sodium: Mass No - 23, Atomic No - 11, No of protons - ____, No of neutrons - ____, No of electrons - ____
Mass No - 23, Atomic No - 11, No of protons - 11, No of neutrons - 12, No of electrons - 11.
Mass No - 23, Atomic No - 11, No of protons - 12, No of neutrons - 11, No of electrons - 12.
Mass No - 23, Atomic No - 11, No of protons - 10, No of neutrons - 13, No of electrons - 10.
Mass No - 23, Atomic No - 11, No of protons - 11, No of neutrons - 11, No of electrons - 12.
Complete the table for Magnesium: Mass No - 24, Atomic No - 12, No of protons - ____, No of neutrons - ____, No of electrons - ____.
Mass No: 24, Atomic No: 12, No of protons: 12, No of neutrons: 12, No of electrons: 12.
Mass No: 24, Atomic No: 12, No of protons: 11, No of neutrons: 13, No of electrons: 12.
Mass No: 24, Atomic No: 12, No of protons: 12, No of neutrons: 11, No of electrons: 13.
Mass No: 24, Atomic No: 12, No of protons: 13, No of neutrons: 12, No of electrons: 11.
Complete the table for Aluminium: Mass No - 27, Atomic No - 13, No of protons - ____, No of neutrons - ____, No of electrons - ____
Mass No - 27, Atomic No - 13, No of protons - 13, No of neutrons - 14, No of electrons - 13.
Mass No - 27, Atomic No - 13, No of protons - 14, No of neutrons - 13, No of electrons - 14.
Mass No - 27, Atomic No - 13, No of protons - 12, No of neutrons - 15, No of electrons - 12.
Mass No - 27, Atomic No - 13, No of protons - 13, No of neutrons - 13, No of electrons - 14.
Complete the table for Silicon: Mass No - 28, Atomic No - 14, No of protons - ____, No of neutrons - ____, No of electrons - ____
Mass No - 28, Atomic No - 14, No of protons - 14, No of neutrons - 14, No of electrons - 14.
Mass No - 28, Atomic No - 14, No of protons - 13, No of neutrons - 15, No of electrons - 14.
Mass No - 28, Atomic No - 14, No of protons - 15, No of neutrons - 13, No of electrons - 14.
Mass No - 28, Atomic No - 14, No of protons - 14, No of neutrons - 13, No of electrons - 15.
Complete the table for Phosphorus: Mass No - 31, Atomic No - 15, No of protons - ____, No of neutrons - ____, No of electrons - ____.
Mass No - 31, Atomic No - 15, No of protons - 15, No of neutrons - 16, No of electrons - 15.
Mass No - 31, Atomic No - 15, No of protons - 16, No of neutrons - 15, No of electrons - 16.
Mass No - 31, Atomic No - 15, No of protons - 14, No of neutrons - 17, No of electrons - 14.
Mass No - 31, Atomic No - 15, No of protons - 15, No of neutrons - 15, No of electrons - 16.
Complete the table for Sulphur: Mass No - 32, Atomic No - 16, No of protons - ____, No of neutrons - ____, No of electrons - ____.
Mass No - 32, Atomic No - 16, No of protons - 16, No of neutrons - 16, No of electrons - 16.
Mass No - 32, Atomic No - 16, No of protons - 15, No of neutrons - 17, No of electrons - 16.
Mass No - 32, Atomic No - 16, No of protons - 16, No of neutrons - 15, No of electrons - 17.
Mass No - 32, Atomic No - 16, No of protons - 17, No of neutrons - 16, No of electrons - 15.
Complete the table for Chlorine: Mass No - 35, Atomic No - 17, No of protons - ____, No of neutrons - ____, No of electrons - ____
Mass No - 35, Atomic No - 17, No of protons - 17, No of neutrons - 18, No of electrons - 17.
Mass No - 35, Atomic No - 17, No of protons - 18, No of neutrons - 17, No of electrons - 18.
Mass No - 35, Atomic No - 17, No of protons - 16, No of neutrons - 19, No of electrons - 16.
Mass No - 35, Atomic No - 17, No of protons - 17, No of neutrons - 17, No of electrons - 18.
Complete the table for Argon: Mass No - 40, Atomic No - 18, No of protons - ____, No of neutrons - ____, No of electrons - ____.
Mass No - 40, Atomic No - 18, No of protons - 18, No of neutrons - 22, No of electrons - 18.
Mass No - 40, Atomic No - 18, No of protons - 20, No of neutrons - 20, No of electrons - 18.
Mass No - 40, Atomic No - 18, No of protons - 18, No of neutrons - 20, No of electrons - 20.
Mass No - 40, Atomic No - 18, No of protons - 19, No of neutrons - 21, No of electrons - 18.
Complete the table for Potassium: Mass No - 39, Atomic No - 19, No of protons - ____, No of neutrons - ____, No of electrons - ____
Mass No: 39, Atomic No: 19, No of protons: 19, No of neutrons: 20, No of electrons: 19
Mass No: 39, Atomic No: 19, No of protons: 20, No of neutrons: 19, No of electrons: 20
Mass No: 39, Atomic No: 19, No of protons: 18, No of neutrons: 21, No of electrons: 18
Mass No: 39, Atomic No: 19, No of protons: 19, No of neutrons: 19, No of electrons: 20
Complete the table for Calcium: Mass No - 40, Atomic No - 20, No of protons - ____, No of neutrons - ____, No of electrons - ____
Mass No: 40, Atomic No: 20, No of protons: 20, No of neutrons: 20, No of electrons: 20
Mass No: 40, Atomic No: 20, No of protons: 18, No of neutrons: 22, No of electrons: 18
Mass No: 40, Atomic No: 20, No of protons: 21, No of neutrons: 19, No of electrons: 21
Mass No: 40, Atomic No: 20, No of protons: 19, No of neutrons: 21, No of electrons: 19
