Question

4.1 In the table B which student write the incorrect electronic configuration and write the its name? [11
4,2 How many shells are used to write the electronic configuration of element?
4.3 The atomic number of sodium is
(a) 11
(b) 13 )
(d) 9
4.4 If the atomic number of element is 12 than write down it's electronic configuration. [1]
a) 2, 2, 8 (6) 2, 4, 6 (0) 2, 8, 2
(d) 2, 6, 4​

Answer 1

Answer:

4.1. sodium (Na) :-2,8,1

4.2. shell :- 3

4.3. (a) 11

4.4. (0) 2,8,2