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melisa1 [442]
3 years ago
5

What element has three valence electrons in the second energy level.​

Chemistry
2 answers:
statuscvo [17]3 years ago
7 0

Answer:

Boron

Explanation:

Hope that helps

OverLord2011 [107]3 years ago
6 0

Answer:

Boron.

Explanation:

2 energy shells

1st energy she'll 2 electrons

2nd energy shell 3 electrons

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Answer:

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Explanation:

You can use dimensional analysis to help you solve for this question

1. set up a proportion

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2. to find the amount of grams/mol that are in NiS we find the gram formula mass (mass of all the atomic masses of each element)

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