Subatomic Particles

Front

What does the atomic number represent in an element's symbol?

Back

The atomic number represents the number of protons in the nucleus of an atom.

Front

How many protons does an atom with atomic number 6 have?

Back

6 protons.

Front

What are the two types of subatomic particles found in the nucleus of an atom?

Back

Protons and neutrons.

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

Where are electrons located in an atom?

Back

Electrons move around the nucleus of an atom.

Front

What is the mass of a neutron compared to a proton?

Back

A neutron has a mass approximately equal to that of a proton.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the role of neutrons in the nucleus of an atom?

Back

Neutrons help stabilize the nucleus by offsetting the repulsive forces between protons.

Front

What is the significance of the number of neutrons in an atom?

Back

The number of neutrons can affect the stability and isotopes of an element.

Front

What is an isotope?

Back

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons.