Determine the number of valence electrons for magnesium

Question

Chemistry

Abbigail Mcmillan

30 June, 15:17

Determine the number of valence electrons for magnesium

+2

Answers (1)

Know the Answer?

Cristofer Johns · Answer 1

Magnesium has 2 valence electrons.

Explanation:

The atomic number of magnesium is 12. This means that it has 12 protons and 12 electrons. The first electron shell can hold 2 electrons, the second can hold 8, so the third will have 2 electrons. The outermost shell of the atom has two electrons. Therefore, magnesium has 2 valence electrons.