Subatomic Particles

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

What are protons?

Back

Protons are positively charged subatomic particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are neutral subatomic particles found in the nucleus of an atom, with a mass of approximately 1 amu.

Front

What are electrons?

Back

Electrons are negatively charged subatomic particles that orbit the nucleus of an atom.

Front

What is atomic number?

Back

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

Front

What is atomic mass?

Back

Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

How do you determine the number of neutrons in an atom?

Back

Subtract the atomic number from the atomic mass: Neutrons = Atomic Mass - Atomic Number.

Front

What is an isotope?

Back

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

Front

What does the letter 'T' represent in atomic notation?

Back

In atomic notation, 'T' typically represents the nucleus of an atom.

Front

What is the charge of a neutron?

Back

Neutrons have no charge; they are neutral particles.