Front

What is the atomic number?

Back

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

Front

What is the smallest particle of an ELEMENT, and it has also all the properties of it?

Back

Atoms are the smallest particles of an element that retain all the properties of that element.

Tags

NGSS.MS-PS1-1

Front

What is the subatomic particle that has no charge?

Back

Neutrons are subatomic particles that have no charge.

Front

Which element has an atomic # of 13?

Back

Aluminum has an atomic number of 13.

Front

What is the atomic mass of Neon?

Back

The atomic mass of Neon is approximately 20.

Front

What are protons?

Back

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

Front

What are electrons?

Back

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

Front

What is a nucleus?

Back

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

Tags

NGSS.MS-PS1-1

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.

Tags

NGSS.HS-PS1-8

Front

What is the difference between atomic mass and atomic weight?

Back

Atomic mass is the mass of a single atom, while atomic weight is the average mass of an element's isotopes.