Atomic Structure

Front

What is the atomic structure?

Back

The atomic structure refers to the arrangement of protons, neutrons, and electrons in an atom.

Tags

NGSS.MS-PS1-1

Front

What are protons?

Back

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

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom, having no charge.

Tags

NGSS.MS-PS1-1

Front

What are electrons?

Back

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

Tags

NGSS.MS-PS2-3

Front

What is the nucleus of an atom?

Back

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

Front

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

Back

Number of neutrons = Atomic mass - Atomic number.

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 atom's isotopes, measured in atomic mass units (amu).

Tags

NGSS.HS-PS1-7

Front

What is an isotope?

Back

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

Tags

NGSS.HS-PS1-8

Front

What is the charge of a neutron?

Back

Neutrons have no charge; they are neutral.