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Lewis Dot Structure

Represent eac...

Question

Represent each of the following atoms using Lewis notation:
(a) beryllium
(b) calcium
(c) lithium

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Solution

$B e {1 s}^{2} {2 s}^{2} ¨ (B e)$ } 2 valence electron
$C a {1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6} {4 s}^{2} ¨ (C a)$ } valence $e^{-}$
$L i {1 s}^{2} {2 s}^{1} ˙ (L i)$ } one valence electron

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