How many electrons in an atom with atomic number 105 can have (n + 1) – InterviewSolution

1.

How many electrons in an atom with atomic number 105 can have (n + 1) = 8 ? (a) 30 (b) 17 (c) 15 (d) unpredictable

Answer»

(b) 17

n + 1 = 8

Electronic configuration of atom with atomic number 105 is [Rn] 5f¹⁴ 6d³ 7s²

Orbital	(n+1)	No. of electrons
5f	5 + 3 = 8	14
6d	6 + 2 = 8	3
7s	7 + 0 = 0	2
No. of electrons = 14 + 3 = 17

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