Question

choose the answer that best completes the sentence. bohr proposed electrons orbit at fixed distances from the nucleus in ______ states, such as the ground state or excited state to explain why they did not radiate energy while orbiting the nucleus. a stationary b dynamic c transient

Explanation:

Bohr's model proposed electrons are in stationary states (like ground or excited states) where they don't radiate energy while orbiting the nucleus. Stationary states have fixed energy levels.

Answer:

A. stationary