Isotopes of Atoms ____

Question

Isotopes of atoms ____.  
A) have the same number of neutrons but a different number of protons
B) behave the same chemically and biologically from other isotopes
C) are the same physically and biologically but differ from other isotopes chemically
D) have the same number of protons but a different number of electrons
E) are produced when atoms lose electrons

Accepted Answer

Isotopes of an atom have the same number of protons (hence the same chemical element) but differ in the number of neutrons. This difference in neutron number does not significantly affect their chemical and biological behavior, as these properties are primarily determined by the electron configuration, which is the same for isotopes of the same element.