NGSS.MS-PS1-1

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

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NGSS.MS-PS1-1

What are the 3 subatomic particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

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NGSS.MS-PS1-1

How many valence electrons does Oxygen (O) have?

• 6

• 8

• 15

• 16

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NGSS.MS-PS1-1

How many TOTAL atoms are on the REACTANT side of this equation?
CH₄ + 2O₂ → CO₂ + 2H₂O 

• 5
• 7
• 9
• 11

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NGSS.MS-PS1-1

What is the element name?

• Argon

• Neon

• 18

• Ar

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NGSS.MS-PS1-1

Hydrogen and oxygen atoms can form water. What is this example of water?

• Atoms of a compound

• A mixture

• Molecules of a compound

• Molecules of an element

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NGSS.MS-PS1-1

How many oxygen atoms are in Al₂(SO₄)₃ ?

• 4

• 12

• 7

• 24

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NGSS.MS-PS1-1

How many electrons does Copper (Cu) have?

• 29

• 64

• 35

• 58

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NGSS.MS-PS1-1

This image is a model of...

• an element

• a compound

• a homogenous mixture

• a heterogeneous mixture

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NGSS.MS-PS1-1

How many neutrons are in this element?

• 28

• 14

• 29

• 42

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NGSS.MS-PS1-1