| 208. |
All atoms of two
isotopes
|
|
A. |
have the same number of protons
and electrons. |
|
This
is true for all neutral atoms. However, isotopes do not have to be
neutral. |
|
|
|
|
|
|
B. |
have the same number of neutrons
but different numbers of protons. |
|
Isotopes
are atoms of the same element with different mass numbers.
Since they are the same element, they must have the same number of
protons. |
|
|
|
|
|
|
C. |
have the same number of protons
but different numbers of neutrons. |
|
Isotopes
are atoms of the same element with different mass numbers.
Since they are the same element, they must have the same number of
protons.
Mass Number = # protons + # neutrons
Different Mass Numbers with same Atomic
Numbers must have different numbers of neutrons.
The Correct Answer is C. |
|
|
|
|
|
|
D. |
have different numbers of
protons and neutrons. |
|
Isotopes
are atoms of the same element with different mass numbers.
Since they are the same element, they must have the same number of
protons. |
