9. Electrons in Atoms and the Periodic Table - Parte 3 di 4!

9. Electrons in Atoms and the Periodic Table / Valence Electrons of Elements (Simplified) / Problema 17

Problema 17

An element has an atomic number of 12. How many valence electrons does it have if it is in group 2?

6 valence electrons

2 valence electrons

10 valence electrons

12 valence electrons