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Physics, 29.01.2020 07:07 Robotpunmaster

If an atom has seven electrons how many are in the second shell?
a. 2
b. 5
c. 7
d. you need to know the number of protons to figure this out.

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If an atom has seven electrons how many are in the second shell?
a. 2
b. 5
c. 7
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