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WorksheetsAtomic Structure Vocabulary
Total questions: 63
Worksheet time: 49mins
Name
Class
Date
1.
How many neutrons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?
a)
20
b)
25
c)
2
d)
18
2.
How many electrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?
a)
34
b)
36
c)
2
d)
40
3.
How many electrons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?
a)
20
b)
45
c)
18
d)
2
4.
How many protons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?
a)
34
b)
74
c)
40
d)
36
5.
What particle provided the positive charge for an atom?
a)
proton
b)
neutron
c)
electron
d)
nucleus
6.
Which particle only contributes to the mass of an atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
7.
Which particle does not contribute mass to the atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
8.
Which particle contributes the negative charge to the atom?
a)
proton
b)
electron
c)
neutron
d)
nucleus
9.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
10.
What is the atomic mass (rounded to the nearest whole number) of this element
a)
196
b)
196.95
c)
197
d)
79
11.
How many neutrons will an atom have it has an atomic number of 26, an atomic mass of 58 and a charge of +3?
a)
26
b)
58
c)
32
d)
3
12.
How many protons will an atom have if it has 36 electrons and a charge of -2?
a)
36
b)
38
c)
34
d)
2
13.
How many protons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?
a)
20
b)
10
c)
2
d)
18
14.
How many neutrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?
a)
20
b)
40
c)
34
d)
74
15.
How many protons will an atom have it has an atomic number of 26, an atomic mass of 56 and a charge of +3?
a)
29
b)
30
c)
26
d)
3
16.
How many protons will an atom have it it has 23 electrons and a charge of +3?
a)
23
b)
26
c)
20
d)
3
17.
All elements are composed of
a)
molecules
b)
atoms
c)
neutrons
d)
compounds
18.
____________ can move from one energy level to another when they gain or lose energy.
a)
electrons
b)
protons
c)
neutrons
d)
atoms
19.
Atoms of the same element must always have the same number of _________
a)
electrons
b)
neutrons
c)
isotopes
d)
protons
20.
The dense, positively charged mass located in the center of the atom.
a)
nucleus
b)
proton
c)
isotope
d)
molecule
21.
The _________ of an element equals the number of protons in an atom of that element
a)
mass number
b)
atomic weight
c)
atomic number
d)
isotopes
22.
The __________ of an atom is the sum of the protons and neutrons in the nucleus of that atom.
a)
mass number
b)
atomic number
c)
atomic weuight
d)
isotope weight
23.
The __________ of an atom is the sum of the protons and neutrons in the nucleus of that atom.
a)
mass number
b)
atomic number
c)
atomic weuight
d)
isotope weight
24.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
variables
d)
electron cloud
25.
Isotopes are elements with a different amount of
a)
protons
b)
neutrons
c)
electrons
d)
atoms
26.
The possible energies that electrons in an atom can have are called __________
a)
isotopes
b)
potential energies
c)
energy levels
d)
kinetic energies
27.
What element has an electron configuration of 1s22s22p4?
a)
Hydrogen
b)
Boron
c)
Nitrogen
d)
Oxygen
28.
The mass number of an element that has18 protons, 18 electrons, and 19 neutrons is _____.
a)
12.5
b)
13
c)
25
d)
37
29.
The atomic number of an element that has 9 protons, 9 electrons, and 10 neutrons is _____.
a)
9
b)
10
c)
19
d)
28
30.
If the number of electrons in an atom changes you make a(n) __________________.
a)
ion
b)
isotope
c)
new element
d)
isomer
31.
Protons: 15
Neutrons: 16
Electrons: 15
Neutrons: 16
Electrons: 15
a)
Normal Atom
b)
Isotope
c)
Anion
d)
Cation
32.
Atomic Number: 12
Mass Number: 25
Charge: 0
Mass Number: 25
Charge: 0
a)
Normal Atom
b)
Isotope
c)
Cation
d)
Anion
33.
Atomic Number: 26
Neutrons: 30
Electrons: 25
Neutrons: 30
Electrons: 25
a)
Normal Atom
b)
Isotope
c)
Anion
d)
Cation
34.
Neutrons: 42
Electrons: 36
Element: Arsenic
Electrons: 36
Element: Arsenic
a)
Normal Atom
b)
Isotope
c)
Anion
d)
Cation
35.
Sodium
Charge: 0
Mass Number: 22
Charge: 0
Mass Number: 22
a)
Normal Atom
b)
Isotope
c)
Cation
d)
Anion
36.
Which statement is true about oxygen-17 and oxygen-18?
a)
They do not have the same number of protons.
b)
Their atoms have an identical mass.
c)
They are isotopes of oxygen.
d)
The have the same mass number.
37.
The atomic mass of a single atom is
a)
the sum of the protons and neutrons in the atom.
b)
twice the number of protons in one atom of the element.
c)
a ratio based on the mass of a carbon-12 atom.
d)
a weighted average of the masses of the element’s isotopes.
38.
The atomic mass of a single atom is
a)
the sum of the protons and neutrons in the atom.
b)
twice the number of protons in one atom of the element.
c)
a ratio based on the mass of a carbon-12 atom.
d)
a weighted average of the masses of the element’s isotopes.
39.
The glowing of a neon light is caused by electrons emitting energy as they
a)
move from lower to higher energy levels.
b)
collide with other electrons.
c)
move from higher to lower energy levels.
d)
collide with the nucleus.
40.
Smallest particle of an element.
a)
atom
b)
proton
c)
electron
d)
neutron
41.
the smallest unit of an element that maintains the chemical properties of that element
a)
Atom
b)
Atomic Number
c)
Electron
d)
Ion
42.
the number of protons in the nucleus of an atom.
a)
Atomic number
b)
Atom
c)
Element
d)
Electron
43.
a subatomic particle that has a negative charge.
a)
electron
b)
element
c)
ion
d)
proton
44.
an atom, radical, or molecule that has gained or lost one or more electrons and has a negative or positive charge.
a)
ion
b)
isotope
c)
proton
d)
neutron
45.
The sum of the numbers of protons and neutrons in the nucleus of an atom.
a)
Mass number
b)
Atomic number
c)
Isotope
d)
Ion
46.
an atom that has the same number of protons as other atoms of the same element do but has a different number of neutrons
a)
ion
b)
proton
c)
electron
d)
isotope
47.
Subatomic particle that has a positive charge and that is located in the nucleus of an atom.
a)
Proton
b)
Neutron
c)
Electron
d)
Isotope
48.
Proton
a)
subatomic particle that has a positive charge and that is located in the nucleus of an atom.
b)
substance that forms in a chemical reaction
c)
sample of matter either a single element or a single compound, that has definite chemical & physical properties
d)
a radioactive material that is added to a substance so that its distribution can be detected later
49.
Neutron
a)
subatomic particle that has no charge and that is located in the nucleus of an atom
b)
a large of cloud gas and dust in instellar space, region where stars are born
c)
one of the elements of group 18 of the periodic table
d)
an element that conducts heat & electricity poorly & that does not form positive ions in solution
50.
Ion
a)
atom or molecule that has gained or lost one more electrons and has a negative or positive charge
b)
atom or molecule that can reversibly change color depending on conditions such as pH
c)
an atom that has the same number of protons as other atoms of the same element do but that has a different number of electrons
d)
one of the elements of Group 17 of the periodic table
51.
Element
a)
substance that cannot be separated or broken down into simpler substances by chemical means.
b)
any mixture of 2 or more immiscible liquids in which one liquid is dissolved in the other
c)
substance that can be separated and broken down into simpler substances by physical means
d)
substance that can be separated and broken down into simpler substances by physical means
52.
Electron
a)
subatomic particle that has a negative charge
b)
subatomic particle that has a positive charge
c)
subatomic particle that has no charge
d)
subatomic particle that has a neutral charge
53.
Atomic number
a)
the number of protons in the nucleus of an atom
b)
the number of neutrons in the nucleus of an atom
c)
the number of neutrons & protons in the nucleus of an atom
d)
the number of protons & electrons in the nucleus of an atom
54.
Atom
a)
smallest unit of an element that maintains the chemical properties of that element
b)
a solid or liquid mixture of two or more metals
c)
a compound of a class of simple organic compounds that contain a carbon atom and a amino acid
d)
a substance that changes the rate of chemical reaction without being consumed or changed significantly
55.
Atoms of the same element but with different numbers of neutrons.
a)
Ion
b)
Isotope
c)
Mass Number
d)
electron
56.
An atom that has become charged by gaining or losing electrons.
a)
Ion
b)
Isotope
c)
Electron
d)
Valence Electron
57.
Group on the periodic table that is naturally stable and does not react with other elements.
a)
Nobel Gases
b)
Alkali Metals
c)
Alkaline Earth Metals
d)
Halogens
58.
Electrons in the outermost orbital.
a)
Protons
b)
Neutrons
c)
Valence Electrons
d)
Isotopes
59.
The total number of Protons and Neutrons.
a)
Mass Number
b)
Atomic Number
c)
Matter
d)
Ion
60.
Negatively charged Particle
Mass: Almost Nothing
Mass: Almost Nothing
a)
Protons
b)
Neutrons
c)
Electrons
d)
Isotopes
61.
Neutral Charged Particle
Mass: 1 Amu
Mass: 1 Amu
a)
Proton
b)
Neutron
c)
Electron
d)
Isotope
62.
Positively Charged Particle
Mass: 1 amu
Mass: 1 amu
a)
Proton
b)
Neuton
c)
Electron
d)
Isotope
63.
The building blocks of matter
a)
Mass Number
b)
Atoms
c)
Nobel Gases
d)
Isotopes
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