Download Which of the following statements correctly describes the relative

1
Created by Boundless
Which of the following statements correctly describes the relative masses of the
three subatomic particles?
A
Protons and neutrons weigh the same, electrons weigh
much less.
B
Neutrons and electrons weigh the same, protons weigh
much less.
C
Protons and electrons weigh the same, neutrons weigh
much less.
D
Protons, neutrons and electrons all weight the same.
2
Created by Boundless
Which of the following statements correctly describes the relative charges of the
three subatomic particles?
3
A
Neutrons are positive, electrons are neutral, protons are
negative.
B
Protons are positive, neutrons are neutral, electrons are
negative.
C
Electrons are positive, protons are neutral, neutrons are
negative.
D
Protons and neutrons have a charge of +1, while
electrons have a much smaller charge.
Created by Boundless
Which of the following statements accurately describes the locations of the three
subatomic particles that make up an atom?
A
The protons and neutrons are in the nucleus, while the
electrons orbit the nucleus.
B
The protons and electrons are in the nucleus, while the
neutrons orbit the nucleus.
C
The protons, neutrons and electrons are all in the
nucleus.
D
The neutrons and electrons are in the nucleus, while the
protons orbit the nucleus.
4
Created by Boundless
If an atom has a mass number of 18, what can be said about the number of
protons and neutrons it contains?
A
It cannot be determined from the information given.
B
It has 10 protons and 8 neutrons.
C
It has 9 protons and 9 neutrons.
D
It has 8 protons and 10 neutrons.
5
Created by Boundless
If an atom has 8 protons, what is its atomic number?
A
16
B
8
C
It depends on the number of neutrons in the atom.
D
It depends on the number of electrons in the atom.
6
Created by Boundless
Which of the following statements concerning isotopes is true?
A
Isotopes are atoms of the same element that have the
exact same atomic mass.
B
Isotopes are atoms of different elements that have
different atomic masses
C
Isotopes are atoms of the same element that have
different atomic masses.
D
Isotopes are atoms of different elements that have the
same atomic mass.
7
Created by Boundless
Which of the following measurements used in radiometric dating can be used to
determine the age of fossils?
A
The amount of a radioisotope leached into surrounding
environments according to its known half­life
B
The current half­life of a stable radioisotope in the
sample
C
The decrease in the amount of an unstable radioisotope
according to its known half­life
D
The increase in the amount of an unstable radioisotope
according to its known half­life