Physical Science Chapter 12 part 2

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Which of the following might best explain the reason why electrons are restricted to certain energy levels in an atom? a)They behave like restricted waves and are self-reinforcing. b)They are traveling at very high speeds. c)They are interacting with the light around the atom. d)They are out of phase and self-destruct when outside of distinct energy regions. e)They behave like chaotic waves of alternating frequency.

a) They behave like restricted waves and are self-reinforcing.

The __________________ represents the complete range of frequencies of light energy from radio waves to cosmic rays.

electromagnetic spectrum

How is the term photon related to the term quantum?

A quantum of light is actually one photon.

Which color of light comes from the higher energy transition, red or blue?

Blue is a higher frequency and therefore corresponds to a higher energy level transition.

What was Niels Bohr's explanation for the observation of atomic spectra?

Electrons could only move in discrete energy steps within an atom.

How can a hydrogen atom, which has only one electron, have so many spectral lines?

One electron can be boosted to many different energy levels.


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