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WorksheetsAtomic Theory Test
Total questions: 38
Worksheet time: 48mins
Anything that has mass and takes up space is called ________ .
Matter
Energy
Atom
Molecule
All elements are made of basic particles called _________________.
Compounds
Mixtures
Atoms
Molecules
A neutral particle of an atom
Atom
Proton
Neutron
Electron
A negatively charged particle of an atom
Atom
Proton
Neutron
Electron
The smallest particle that has the characteristics of the element
Atom
Proton
Neutron
Electron
A positively charged particle of an atom
Atom
Proton
Neutron
Electron
These particles have a mass of roughly 0.0005 AMU.
Atom
Proton
Neutron
Electron
These particles have a mass of roughly 1 AMU
Atom & Protons
Proton & Electrons
Neutron & Protons
Electron & Neutrons
Letter A represents the ________.
Proton
Neutron
Nucleus
Electron
Letter B represents the....
Proton
Neutron
Nucleus
Electron
Letter C represents the....
Proton
Neutron
Nucleus
Electron
Letter D represents the....
Proton
Electron Shell
Nucleus
Electron
Letter E represents the....
Proton
Electron Shell
Nucleus
Electron
What is the atomic number of Neon (Ne)?
18
2
10
20
What is the atomic number of Iron (Fe)?
26
82
56
4
What is the approximate atomic mass of Zinc (Zn)?
30
65
35
4
What is the approximate atomic mass of Fluorine (F)?
19
9
17
2
How many protons are found in Nitrogen (N)?
15
14
7
11
How many protons are found in Lithium (Li)?
3
2
7
4
How many electrons are found in Boron (B)?
5
11
13
6
How many electrons are found in Copper (Cu)?
64
35
6
29
How many neutrons are found in Potassium (K)?
19
39
20
58
How many neutrons are found in Ruthenium (Ru)?
57
44
145
101
What is the name of the element with the symbol Hg?
Hydrogen
Helium
Mercury
Helonium
What is the name of the element with the symbol Au?
Aluminum
Argon
Gold
Americium
In an atom, the number of protons always equals the number of _________.
Nuclei
Electrons
Neutrons
Isotopes
The atomic number of an element is based on the __________.
Mass of its nucleus
Number of electrons in the nucleus
Number of protons in the nucleus
Number of neutrons in the nucleus
The atomic mass of an element is based on the _________________.
Number of protons
Number of neutrons
Number of protons and electrons
Number of protons and neutrons
In the periodic table, a horizontal row is called a ____________.
Section
Group
Family
Period
In the periodic table, a vertical column is called a ______________.
Section
Category
Group/Family
Period
From an element’s location on the periodic table, you can predict _____________.
Its chemical properties
Its chemical name
Its chemical symbol
When it was discovered
Which group contains the most elements?
Metalloids
Nonmetals
Metals
Transition Elements
Which of the following pairs of elements would
have the most similar properties.
Hydrogen (H) & Beryllium (Be)
Sodium (Na) & Magnesium (Mg)
Potassium (K) & Sodium (Na)
Calcium (Ca) & Scandium (Sc)
Which of the following statements about atoms is true?
They are the same for all elements
They are both stable and nonradioactive
They are arranged in the periodic table according to number of protons
They are made up of protons and electrons in a nucleus surrounded by orbiting neutrons.
In the periodic table, which of the following describes atoms with similar chemical behavior and properties?
They have similar atomic masses.
They are located in the same group/family.
They are located in the same period.
They have the same number of isotopes.
Which of the following statements regarding the periodic table is true?
The periodic table does NOT list all of the known elements in the universe.
All elements on the periodic table are made up of the same fundamental particles: protons, neutrons, and electrons.
It is impossible to predict the properties of elements based on their position in the periodic table.
All nonliving things consist of elements on the periodic table. All living things consist of things that are not listed on the periodic table.
Why is the mass of a carbon atom greater than the mass of its protons and electrons?
The mass of a proton is greater than the mass of an electron.
A proton is positively charged and an electron is negatively charged.
Most of the atom’s volume is in the sphere-shaped cloud of electrons.
The neutrons in the nucleus add mass to the atom.
Which of these elements would have chemical properties that are most similar to Nitrogen (N).
Carbon (C)
Neon (Ne)
Phosphorous (P)
Oxygen (O)
