Which of the following statements about isotopes is TRUE?
A) Isotopes of the same element differ only in the number of electrons they contain.
B) An isotope of an atom with a larger number of neutrons is larger than an isotope of the same atom that contains fewer neutrons.
C) Isotopes of the same element have the same mass.
D) Isotopes of the same element don't usually have the same properties.
E) Some elements have three or more naturally occurring isotopes.

Question

Quizplus · Accepted Answer

Isotopes are atoms of the same element with the same number of protons but different numbers of neutrons. Therefore, they have the same atomic number but different atomic masses. Some elements, such as carbon and hydrogen, have three or more naturally occurring isotopes. Therefore, option E is the correct statement about isotopes. Options A, B, and D are incorrect as they do not accurately describe the nature of isotopes. Option C is incorrect as isotopes of the same element have the same number of protons but different numbers of neutrons, hence, different atomic masses.

Which of the Following Statements About Isotopes Is TRUE