WorksheetsAtoms & The Periodic Table
Total questions: 40
Worksheet time: 1hrs 20mins
Determine the group AND period of the element gold.
Group 3, Period 1
Group 6, Period 2
Group 1, Period 3
Group 11, Period 6
The number of __________ identifies the element.
protons
electrons
neutrons
quarks
Which element has a mass of about 12 amu?
Helium
Carbon
Lithium
Boron
What is the region around the nucleus that is occupied by electrons called?
Electron space
Electron cloud
Nucleus
What particles are found in the nucleus of an atom?
electrons and protons
electrons and neutrons
protons and neutrons
protons, neutrons, and electrons
The maximum number of electrons allowed in the 2nd energy level of an atom is _________.
2
4
8
18
Which of the following has a negative electric charge?
proton
electron
neutron
nucleus
Which of the following is the correct electron dot diagram for aluminum (Al)?
Which describes what an electron dot diagram represents.
valence electrons
all the electrons in an atom
protons on the outer shell
the reactivity of an atom
Vertical columns in the periodic table are called (a) .
What do the elements in the same period have in common?
Same # of protons
Same # of valence electrons
Same # of energy levels
Same electron configuration
Identify the 3 particles that make up an atom along with their charges.
Proton (+), Electron (-), and Neutron (no charge)
Proton (+), Electron (-), and Quark (no charge)
Proton (-), Electron (+), and Neutron (no charge)
Proton (+), Electron (-), Neutron (no charge), and Quark (no charge)
Which element makes up 90% of the atoms in the universe and is highly reactive?
Neon
Iron
Oxygen
Hydrogen
Determine the mass and atomic number of chlorine (Cl).
Mass 12, Atomic # 6
Mass 6, Atomic # 12
Mass 17, Atomic # 35
Mass 35, Atomic # 17
Elements are organized in the periodic table by increasing atomic (a) .
If the atomic number of an element is 5 and the mass number is 10, how many neutrons does the atom have?
5
10
15
20
The element with the chemical symbol of Au is called (a) .
The chemical symbol for the element Mercury is (a) .
The chemical symbol for Iron is ________.
Ir
I
Fg
Fe
Horizontal rows of the periodic table are called _______.
Periods
Groups
Family
Rows
Atoms of the same element with different numbers of neutrons are called _________.
ions
group members
isotopes
element groups
The number of which particle determines the identity of an element?
(a)
Which explains why electron positions cannot be pinpointed to an exact location.
Electrons move but always stay on the same shell
Electrons are in the nucleus
Electrons are always moving and jumping from shell to shell
Each energy level of an atom has a maximum number of ______ it can hold.
electrons
protons
neutrons
quarks
Which explains how elements are abbreviated in scientific shorthand.
First letter capitalized, second letter lower case
All letters capitalized
Capitalization doesn't matter with chemical symbols
Which Bohr model is correctly drawn for the element of nitrogen?
Protons and neutrons are made up of smaller particles called _______.
Electrons
Electrons and quarks
Subatomic particles
Quarks
What is the chemical symbol for zinc?
(a)
Which correctly defines what an atom is?
The smallest piece of matter that has a positive charge
The smallest piece of matter that still has the properties of the element.
The smallest piece of matter that takes on the properties of the atoms around it.
The smallest piece of matter that is negatively charged
Nitrogen has an atomic mass of (a) .
Nitrogen has an atomic number of (a) .
Nitrogen's chemical symbol is (a) .
Moseley corrected the early problems of the periodic table by arranging the elements in order of increasing atomic ______.
configuration
mass
number
size
Which of the following is NOT found in the nucleus of an atom?
Protons
Electrons
Neutrons
Quarks
The first periodic table based on atomic mass was devised by ________.
Moseley
Mendeleev
Einstein
Menden
When 2 or more elements bond together, a ________ is formed.
Compound
Mixture
Element cluster
Atom
A material containing 2 or more elements or compounds that are in close contact and mixed in any proportion is called a ________.
Solution
Element
Compound
Mixture
Which of the following are types of mixtures?
Solids and liquids
Elements and compounds
Heterogenous and homogeneous
Translucent and opaque
Which of the following is a homogenous mixture?
Sand in water
Oil and vinegar dressing
Air
Which of the following is a heterogenous mixture?
Soda
Oil and vinegar dressing
Air
