What are isotopes of an element?
a.Atoms of a different element with a different number of neutrons
b.Atoms of a different element with a different number of protons
c.Atoms of the same element with a different number of neutrons
d.Atoms of the same element with a different number of protons
isotope is one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table and nearly identical chemical behavior but with different atomic masses and physical properties. Every chemical element has one or more isotopes.
Isotopes are members of a family of an element that all have the same number of protons but different numbers of neutrons. The number of protons in a nucleus determines the element's atomic number on the Periodic Table. For example, carbon has six protons and is atomic number 6.