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What would cause a nucleus to be unstable?
A. An unequal number of protons and electrons
B. Too few quarks within the nucleus of the atom
C. An equal number of protons and neutrons
D. An imbalance between the electrostatic and strong nuclear forces
SUBMIT

Answer :

D

I don’t know how to explain it, but when there are 8 outermost outer nuclear electrons, it’s the most stable time, lose e- will make it unstable

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