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Vsevolod [243]
3 years ago
15

What is the valence number of an element that has 3 electron in its outermost shell?

Chemistry
1 answer:
givi [52]3 years ago
5 0
Lithium has 3 electrons --- 2 in the first shell, and 1 in the second shell (so one valence electron). Beryllim has 4 electrons --- 2 in the first shell, and 2 in the second shell (so two valence electrons). Boron has 5 electrons --- 2 in the first shell, and 3 in the second shell (so three valence electrons).Jul 27, 2019
Hope that helps and may I get brainliest?
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