To Build an Atom, You Have to Know an Atom

What subatomic particle determines the identity of an atom?

• Electron
• Neutron
• Proton
• Neuron

How do you determine the mass number of an atom?

• Add protons, neutrons, and electrons
• Add protons and neutrons
• Add protons and electrons
• It is equal to the number of protons

The central region of an atom where its neutrons and protons are is its

• nucleus

• electron cloud

• core

• center

B and C are found in the ______ of an atom.

• Energy levels
• Space
• Nucleus
• Outside

Tags

NGSS.MS-PS1-1

Which of these is the electron?

• A
• B
• C
• D

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NGSS.MS-PS1-1

Where is most of the mass of an atom located?

• In the nucleus
• Electron cloud
• In the electron
• Evenly spread throughout the atom

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NGSS.HS-PS1-8

Which two types of atomic particles carry an electrical charge?

• protons and electrons
• quarks and neutrons
• neutrons and electrons
• protons and neutrons

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NGSS.HS-PS2-4

If the number of protons equal the number of _____, the atom will have a neutral (0) charge

• protons

• neutrons

• electrons

• nucleus

An atom is made up mostly of

• protons
• gravity
• empty space
• electricity

Tags

NGSS.MS-PS1-1

The NUCLEUS of an atom has an overall ___.

• positive charge

• negative charge

• neutral charge

• static charge

Tags

NGSS.HS-PS1-8