Subatomic Particles

Front

What are the three main subatomic particles in an atom?

Back

Electrons, Protons, 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

How many protons does Helium have?

Back

2.

Front

What is the atomic mass of an element?

Back

The weighted average mass of an atom's isotopes.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

They are equal in number.

Front

What is the mass of a proton compared to an electron?

Back

A proton is approximately 1836 times more massive than an electron.

Front

What determines the identity of an element?

Back

The number of protons in its nucleus.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.