If an atom has 7 protons,there will be
A) 7 electrons in the nucleus
B) 7 neutrons in the nucleus
C) 7 neutrons in energy levels outside the nucleus
D) 2 electrons in the lowest energy level outside the nucleus and 5 electrons in the next higher level
E) 5 electrons in the lowest energy level outside the nucleus and 2 electrons in the next higher level
Correct Answer:
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