Front

What are electrons?

Back

Electrons are subatomic particles with a negative charge that orbit the nucleus of an atom.

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NGSS.MS-PS1-5

NGSS.MS-PS2-3

Front

Where can electrons be found in an atom?

Back

Electrons can be found in the electron clouds surrounding the nucleus.

Front

What is the nucleus of an atom?

Back

The nucleus is a tiny, dense, positively charged portion of the atom that contains protons and neutrons.

Tags

NGSS.HS-PS1-8

Front

What are protons?

Back

Protons are subatomic particles with a positive charge found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are subatomic particles with no charge (neutral) that are found in the nucleus of an atom.

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NGSS.HS-PS1-8

Front

What is the Bohr Model?

Back

The Bohr Model is a representation of the atom that depicts electrons orbiting the nucleus in defined paths or energy levels.

Front

What is the Thomson Model?

Back

The Thomson Model, also known as the 'plum pudding model', suggests that atoms are made of a positively charged substance with negatively charged electrons scattered throughout.

Front

What is the Rutherford Model?

Back

The Rutherford Model describes the atom as having a small, dense nucleus surrounded by electrons, showing that most of the atom is empty space.

Tags

NGSS.HS-PS1-8

Front

What is the Cloud Model?

Back

The Cloud Model describes the atom as having electrons in a cloud-like region around the nucleus, where their exact position cannot be determined.

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