#1 Atomic Structure and Ions

Atoms are made up of what?

• molecules

• compounds

• elements

• subatomic particles

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NGSS.MS-PS1-1

Which of the following are subatomic particles? (Check all that apply)

• protons

• neutrons

• megatrons

• electrons

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NGSS.MS-PS1-1

What is the center of an atom called?

• The headquarters

• The centrometer

• The nucleolus

• The nucleus

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NGSS.MS-PS1-1

The nucleus of an atom contains which subatomic particles?

• protons and electrons

• protons and neutrons

• electrons and neutrons

• protons, electrons, and neutrons

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NGSS.MS-PS1-1

Which subatomic particle does the RED(+) circle represent?

• proton

• neutron

• electron

• nucleus

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NGSS.MS-PS1-1

Which subatomic particle does the YELLOW(-) circle represent?

• proton

• neutron

• electron

• nucleus

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NGSS.MS-PS1-1

Which subatomic particle does the GREEN( ) circle represent?

• proton

• neutron

• electron

• nucleus

Tags

NGSS.MS-PS1-1

In a neutral atom, which two subatomic particles are equal in number?

• protons and neutrons

• all subatomic particles are equal in number

• neutrons and electrons

• protons and electrons

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NGSS.MS-PS1-1

Which subatomic particle is counted to determine the type of element the atom represents?

• proton

• neutron

• electron

• boron

Most of an atom's mass is found in the

• electrons.
• nucleus.

Tags

NGSS.HS-PS1-8