Question

Am nevoie urgent de acest exercițiu. ​

Answer 1

1) 1s2 2s2 2p6 3s2 3p6

2) e- de pe ultimul strat = 8e-

3)

a. Ne

b.

1s2 2s2 2p6 3s2 3p2 = Si (3p2 _↑_ _↑_ __ )

1s2 2s2 2p6 3s2 3p4 = S (3p4 _↑↓_ _↑_ _↑_ )

c.

1s2 2s2 2p6 3s2 3p3 = P (3p3 _↑_ _↑_ _↑_ )

d.

1s2 2s2 2p6 3s2 = Mg