Question

what has 2 valence electrons

Answer 1

$\huge{\underline{\underline{\sf{Answer:-}}}}$

Calcium is a group 2 element with two valence electrons. Therefore, it is very reactive and gives up electrons in chemical reactions.

Answer 2

Answer:

Calcium 

Explanation:

is a group 2 element with two valence electrons. Therefore, it is very reactive and gives upelectrons in chemical reactions.