Question

1) 2,8,1 is the electronic configuration of
Na b) Cs c) Be d) AI
(ii) The correct electronic configuration of aluminium cation is
a) 2,8,3 b) 2,8,6 c) 2,8 d) 2
(ii) The correct electronic configuration of oxide ion is
a)
b) 2,8,8. c) 2,8,6. d) 2,6
iv number of electron in M shell of the atom is
a)
2.
b) 18. c) 8.
d 32
(vi) Nitrogen (atomic number 7) and phosphorus (atomic number
15) belong to group 15 of the Periodic Table. Which of these will
be more electronegative?
a) N.
b. P
C As.
Sb​

Answer 1

Answer:

1. a) Na

2. c) 2,8

3. a) 2,8

4. b) 18

5. a) N