Atomic Structure

Front

Subatomic particles with a negative charge

Back

Electrons

Front

What does the 6 represent in an element's notation?

Back

Atomic number

Front

What is the mass number?

Back

The number of protons and neutrons in the nucleus

Front

An atom has 10 protons, 15 neutrons and 10 electrons. What is its mass number?

Back

25

Front

Subatomic particles with a positive charge

Back

Protons

Front

What is the charge of neutrons?

Back

Neutrons have no charge (neutral).

Front

What is the charge of protons?

Back

Protons have a positive charge.

Front

What is the atomic mass?

Back

The weighted average mass of an element's isotopes.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the nucleus of an atom?

Back

The central part of an atom containing protons and neutrons.