Question

write the electronic configuration of Na+ and cl-​

Answer 1

Answer:

N

a

+

which is a positive Sodium Ion. this means that it has lost an electron.

Explanation:

the configuration would be..

11

N

a

+

:

1

s

2

2

s

2

2

p

6

which is the same as Ne.

Answer 2

$\mathbb{SOLUTION-}$

Na+ and Cl- are completely filled atoms because they have a charge,

Hence, thier valencies are,

$\boxed{Na+\:=2,8}$

$\boxed{Cl-\:=2,8,8}$