Unit 2 Test Review (Matter)

Which subatomic particle has a positive electric charge?

• positron

• proton

• electron

• neutron

Tags

NGSS.MS-PS1-1

Which subatomic particle has a no electric charge (neutral)?

• positron

• proton

• electron

• neutron

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NGSS.MS-PS1-1

What is the atomic mass of the atom pictured here?

• 6

• 1

• 7

• 3

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NGSS.MS-PS1-1

What is the atomic number of the atom pictured here?

• 6

• 1

• 7

• 3

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NGSS.MS-PS1-1

What can be found in the nucleus of an atom?

• protons and neutrons

• electrons and neutrons

• electrons and protons

• All of your missing socks.

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NGSS.MS-PS1-1

Pictured here is a model of Carbon Dioxide. This is an example of

• an ion.

• a diatomic molecule.

• an atom.

• a molecule.

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NGSS.MS-PS1-1

Pictured here is Sodium. Sodium is a metal. sodium, like all metals, can conduct electricity. Being able to conduct electricity is an example of

• a physical property.

• a chemical property.

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NGSS.MS-PS3-5

Pictured here is Sodium reacting with water. Sodium explodes when it comes into contact with water. Reacting with water is an example of

• a physical property.

• a chemical property.

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NGSS.MS-PS1-2

The periodic table is ordered by the atomic number, which is the ...

• size of the element's nucleus.

• number of neutrons the element has.

• number of protons the element has.

Tags

NGSS.MS-PS1-1

Most elements on the periodic table are ...

• metals.

• metalloids.

• nonmetals.

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NGSS.MS-PS1-1