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

The number of Na's in Na₂CO₃

• 1
• 2
• 3
• 6

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NGSS.MS-PS1-1

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

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NGSS.MS-PS1-1

A molecule is________

• a glob of gelatinous goo
• smaller than an atom
• filled with raisons
• more than one atom bonded together

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NGSS.MS-PS1-1

What are the building blocks of matter?

• Matter
• Atom
• Molecule
• Element

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NGSS.MS-PS1-1

The number at the top of each square on the periodic table tells us the...

• number of protons in the atom.
• The number of electrons in the atom. 
• The number of nuetrons in the atom.
• The number of protons and electrons in the atom.

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NGSS.MS-PS1-1

This atom will

• lose 2 electrons

• gain 2 electrons

• lose 6 electrons

• gain 6 electrons

• do nothing

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NGSS.MS-PS1-1

In which of these compounds are there twice as many oxygen atoms as hydrogen atoms?

• H₃PO₄

• H₂SO₄

• HCIO₃

• H₂O

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NGSS.MS-PS1-1

This picture represents which of the following?

• molecules

• compounds

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NGSS.MS-PS1-1

Air is made up of atoms and molecules.

• True

• False

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NGSS.MS-PS1-1