When an electron moves from a lower to a higher energy level, the electron . A. moves closer to the nucleus

B. absorbs a continuously variable amount of energy

C. always doubles its energy

D. absorbs a quantum of energy

When an electron moves from a lower energy level to a higher energy level, energy is absorbed by the atom. So B.

Explanation:

When an electron moves from a higher to a lower energy level, energy is released (often as light).

the answer is option a.

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explanation:

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