Question

The atoms of different phosphorus isotopes _____. See Concept 2.2 (Page)
View Available Hint(s)for Part A

have different numbers of electrons
have different numbers of protons
have different numbers of neutrons
have different atomic numbers
react differently with other atoms

Answer 1

The atoms of different phosphorus isotopes **have different numbers of neutrons**.

Isotopes of an element have the same number of protons (and thus the same atomic number) but differ in the number of neutrons, resulting in different atomic masses.