Question

Configuration that shows the
highest energy released when an
electron is added to the atom is
(A) 1s2 2s2 2p3 (B) 1s2 2s2 2p4
(C) 1s2 2s2 2p5 (D) 1s2 2s2 2p6​

Answer 1

Answer:

Atomic number of the given element =10

Electronic configuration =1s

2

,2s

2

p

6

1s

2

2s

2

2p

6

is electronic configuration of Ne.

1s

2

2s

2

2p

5

3s

1

is excited oxidation state.

Answer 2

Answer:

B

Explanation:

In B if one electron is added the atom goes in stable state thus releasing energy