Question

please solve it I will mark u brainlists it's request​

Answer 1

Answer:

1st one ans is 12=2,8,2;

Answer 2

Answer:

1) F = 12 : 1s² 2s² 2p⁶ 3s²

2) 2 valence electrons .

3) there are two electrons in shell one, eight in shell two, and two more in shell three. so 3 shell (K L M )

4) atomic size increase from top to bottom so,

decreasing order : H(38) > G(20) > F(12) > E(4)

5) F is alkaline earth metal ( i.e Magnesium¹² (Mg), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table, and the lightest structural metal. )

Hope this will help you :)