NGSS.MS-PS1-1

Rutherford's gold foil experiment provided evidence that...

• negative and positive charges are spread evenly throughout the atom.
• alpha particles have a positive charge.
• gold is not a dense as previously thought.
• there is a dense positively charged nucleus at the center of an atom.

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The image shows the periodic grid for POTASSIUM. What is Potassium's atomic number?

• 19
• 39
• 20
• Impossible to tell

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NGSS.MS-PS1-1

How many atoms are in the neurotransmitter serotonin? The formula for serotonin is C₁₀H₁₂N₂O

• 10
• 20
• 25
• 23

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NGSS.MS-PS1-1

Which of the following is the most accurate statement?

• everything is both a molecule and a compound

• nothing can be both a molecule and a compound

• all compounds are also molecules

• All molecules are also compounds

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NGSS.MS-PS1-1

Jacob mixed two samples together: a colorless gas with no smell and a colorless liquid that smells like bleach. He analyzed the results and found two ending substances. One of the ending substances was a green gas. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples Jacob mixed together?

• 
• 
• 
• 

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NGSS.MS-PS1-1

What does a represent?

• Proton

• Neutron

• Electron

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This is a list of the 118 known elements that exist (and a picture of it is on this quiz!).

• The Periodic Table of Elements

• The Student Faculty Handbook

• Facebook

• Wikipedia

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NGSS.MS-PS1-1

Which molecular formula only has 12 hydrogens "H"?

• C₄H₁₀ (butane)

• C₅H₁₂ (pentane)

• C₁₂H₂₂O₁₁ (sugar)

• C₈H₁₀N₄O₂ (caffeine)

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NGSS.MS-PS1-1

The compound potassium sulfate, K₂SO_4, is composed of

• 2 atoms of potassium, 1 atom of sulfur, and 4 atoms of oxygen.

• 2 atoms of potassium, 4 atoms of sulfur, and 4 atoms of oxygen.

• two molecules of potassium and one molecule of sulfate.

• one molecule of potassium and two molecules of sulfate.

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NGSS.MS-PS1-1

The element magnesium appears in Group 2 of the Periodic Table. This means a magnesium atom has two -

• protons in its nucleus

• neutrons in it nucleus

• electrons in its outer orbital

• orbital in its electron cloud

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NGSS.MS-PS1-1