Question

Which statement is part of Bohr's atomic model?

Electrons absorb or emit light when they change energy levels.
Electrons with the highest energy are found with orbits of the smallest radius.
Electrons exist as waves and clouds of probability with specific orbits and shapes.
Electrons orbit the nucleus in narrow ellipses, like how the planets orbit the Sun.

Answer 1

"Electrons absorb or emit light when they change energy levels."

Explanation: Bohr's model postulates quantized (fixed) energy levels; electrons jump between these levels and absorb or emit photons equal to the energy difference. The other options describe either incorrect details (2 and 4) or the later quantum-mechanical model (3).