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strojnjashka [21]
3 years ago
13

Magnesium is an alkaline earth metal with an atomic number of 12. It’s in the third row in the periodic table. Which expression

shows one way to find the number of valence electrons in one atom of magnesium? A. 12x3 B. 12/3 C. (12-8)-2 D. (12-2)+8 or E. (12+2)-8
Physics
2 answers:
Vikentia [17]3 years ago
7 0

Answer:

The answer is A.

Explanation: TRUST ME!

Ede4ka [16]3 years ago
6 0
The answer to your question would be A
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Explanation:

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J=m(v-u)\\\\J=0.148\times (11.5-14.5) \\\\J=-0.444\ kg-m/s\\\\|J|=0.444\ kg-m/s

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