Question

Which element has
a) two shells, both of which are completely filled with electrons?

b) the electronic configuration 2, 8, 2?

c) a total of three shells, with four electrons in its valence shell? ​

Answer 1

Heya❤

a) Neon

b) Magnesium

c) Silicon

Hope it helps you

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Answer 2

Hëy Frïèñd...

Here ia the Answer....

a) Neon (2, 8)

b) Magnesium

c) Silicon , atomic number = 14 (2, 8, 4)

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I Hope This Will Help You ^_^^_^