Pre-Lab Flashcard: Evaluate Atomic Spectra

Front

What happens to electrons when energy is applied to atoms?

Back

Electrons move to a higher energy state.

Front

What is the phenomenon called when electrons are ejected from a metal surface due to light exposure?

Back

Photoelectric effect.

Front

What particle is released by atoms when electrons return to a lower energy state?

Back

Photon.

Front

What device can split a color spectrum into individual colors?

Back

Glass prism.

Front

When do atoms release photons of light?

Back

When electrons fall back down to a lower energy state.

Front

What is the term for the energy levels that electrons occupy in an atom?

Back

Atomic orbitals.

Front

What is the relationship between energy and frequency of light?

Back

Energy is directly proportional to frequency (E = hf).

Front

What is the visible spectrum?

Back

The range of light wavelengths that can be seen by the human eye.

Front

What is the principle behind the photoelectric effect?

Back

Light can be thought of as particles (photons) that can transfer energy to electrons.

Front

What is a quantum?

Back

The smallest discrete quantity of energy.