Seudónimo Seudónimo

05-04-2016
Physics

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3. How many valence electrons are in the outermost energy level of each of the following elements?
a. Helium
b. Lithium
c. Nitrogen
d. Magnesium

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AROFLASH AROFLASH

05-04-2016

A.helium has no valency
B.lithium has 1
C.nitrogen has either 5 or 3 because it bonds outer orbital
D.magnesium has 2

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