Atoms and Atomic Mass Flashcard

Front

How is an atom's mass calculated?

Back

By adding the mass of protons and neutrons.

Front

What is the mass of one neutron?

Back

1 atomic mass unit (amu).

Front

Where are the three main subatomic particles located?

Back

In the nucleus and electron cloud.

Front

What are the rings referred to as that the electrons travel in?

Back

Orbitals or shells.

Front

Where are electrons located in an atom?

Back

Outside the nucleus.

Front

What are protons?

Back

Positively charged subatomic particles found in the nucleus of an atom.

Front

What is the charge of a neutron?

Back

Neutrons have no charge (neutral).

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element.

Front

What is an electron?

Back

Negatively charged subatomic particles that orbit the nucleus of an atom.

Front

What is atomic mass?

Back

The weighted average mass of an atom's isotopes, measured in atomic mass units (amu).