7.5.2 The Structure of Atoms

Which two particles make up the nucleus of an atom?

• Protons and Electrons
• Protons and Neutrons
• Molecules and Compounds
• Neutrons and Electrons

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NGSS.HS-PS1-8

In a neutral atom, what is the number of protons equal to?

• The number of electrons.

• The number of neutrons.

• The number of molecules.

• The number of nuclei.

The particles with no charge in an atom are the _______.

• electrons
• neutrons
• protons
• protons and neutrons

Tags

NGSS.MS-PS1-1

The positively charged particles of an atom are the ________.

• electrons
• protons
• neutrons
• protons & neutrons

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NGSS.MS-PS1-1

The negatively charged particles of an atom are the ______.

• electrons
• protons
• neutrons
• protons & neutrons

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NGSS.MS-PS1-1

An electron has this charge

• positive
• negative
• neutral

Tags

NGSS.MS-PS2-3

A neutron has this charge

• negative
• positive
• neutral

A proton has this charge

• negative
• positive
• neutral

A particle that moves around the nucleus is a(n)...

• Proton
• Neutron
• Electron
• Quark

Tags

NGSS.MS-PS1-1

The center of an atom that holds protons and neutrons?

• model
• electron
• nucleus
• neutron

Tags

NGSS.MS-PS1-1