Question

an element belonging to period 3 and group 2 will have how many valence electrons and shell​

Answer 1

Answer:

2.5

Explanation:

beacuse 2.5 is the very must non conditions

Answer 2

Answer:

$\tt{3 \: shells \: and \: 2 \: valencies}$

$\bf \red{hope \: this \: helps \: you}$