Chemistry, 07.10.2019 21:00 Rixi1227

In which shell are the valence electrons of the elements in period 2 found?
(1) 1 (3) 3
(2) 2 (4) 4

Answers: 3

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In which shell are the valence electrons of the elements in period 2 found?
(1) 1 (3) 3
...