Question

give electron configuration of the following : (1) Br 35 (2) Na 11 (3) Cl 17 (4) Ne 10​

Answer 1

Explanation:

1-Electron configurations of the elements (data page)

Legend35 Br bromine : [Ar] 3d10 4s2 4p5

2-refer to attachment

3-Atomic nuomber of Cl = 17 and electronic configuration is 1s22s22p63s23p5.

4-This row concludes with the noble gas argon, which has the electron configuration [Ne]3s23p6, corresponding to a filled valence shell.

...

Valence Electrons.

NeonZ = 101s22s22p6

Answer 2

Explanation:

1) 35 Br bromine : [Ar] 3d10 4s2 4p5

2) Na 11 : 1s2 2s2 2p6 3s1

3) Cl 17 : 1s2 2s2 2p6 3s2 3p5

4) Ne 10 : [He] 2s2 2p6