Science, asked by AsphaltGfx, 4 months ago

(xxiii) If a neutral atom has three shells
completely filled up, then the
atomic number of the atom is
(a) 16
(b) 28
(c) 20
(d) 18

Answers

Answered by suniksha25

1

Answer:

(d) 18

Thanks, hope it helps... :)

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