Question

choose the answer

how many shells are present in an atom if its atomic number is 11

a.2
b.3
c.4
d.1​

Answer 1

Explanation:

ANSWER

Electronic configuration of Cr (atomic number 24) =[Ne]3s

2

3p

6

3d

5

4s

1

Therefore number of electrons in M shell (third shell) =2+6+5=13.

Answer 2

Answer:

b. is the correct

Explanation:

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