PS Ch 4 Review

Front

What is the main focus of Bohr's model of the atom?

Back

Bohr's model focused on the electrons.

Front

What is the subatomic particle with the smallest mass?

Back

Electron.

Front

What are the possible energies that electrons in an atom can have called?

Back

Energy levels.

Front

True or False: In our modern atomic model, electrons move around the nucleus like planets in a solar system.

Back

False.

Front

True or False: An electron in an atom can move from one energy level to another when the atom gains or loses energy.

Back

True.

Front

What is the nucleus of an atom composed of?

Back

Protons and neutrons.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is an atomic orbital?

Back

A region in an atom where there is a high probability of finding electrons.