Question

Different ______ of an element have different numbers of electrons.

1.ions
2.isotopes
3.compounds
4.atoms

Answer 1

ions

Step-by-step explanation:

Answer 2

Answer: 1. Ions

Explanation: Ions of an element are formed when an atom lose or gain electrons and thus different ions will have different electrons.

For example
`Na^+` with 10 electrons is formed when Na with 11 electrons loses one electron.
`Na^-` with 12 electrons is formed when Na with 11 electrons gains one electron.