How many electrons do calcium has?

Answer 1

Calcium, as an element, has 20 electrons. But when becomes an ion, it loses two electrons, becoming Ca+2. Therefore, as an ion, calcium has only 18 electrons.
18

Answer 2

Calcium has 20 electrons in the neutral atom.

That means it has 20 protons per atom. To balance their charge,neutral calcium must also have 20 electrons per atom.

Answer 3

20 electrons electronic configuration 2,8,8,2

Answer 4

A regular calcium atom has 20 electrons in it.

Answer 5

The calcium atom has 20 electrons.

The number of electrons in an atom are the same as the number of protons and the same as the atomic number.

Answer 6

Calcium atom (Ca) has 20 electrons and Calcium ion (Ca2+) has 18 electrons.

Answer 7

calcium atom have 20 electrons.

Answer 8

Calcium has 20 electrons.