NGSS.MS-PS1-1

Which is a neutron?

• A
• B
• C

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NGSS.MS-PS1-1

What is the atomic number?

• 12
• 6
• C
• 18

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NGSS.MS-PS1-1

What subatomic particle(s) would be found orbiting the nucleus?

• Neutrons only
• Electrons only
• Protons and Neutrons
• Protons and Electrons

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NGSS.MS-PS1-1

Atoms of which two elements have a combined total of 23 protons?

• Sodium, Na, and magnesium, Mg

• Boron, B, and carbon, C

• Copper, Cu, and zinc, Zn

• None of these

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NGSS.MS-PS1-1

Which structural feature of the 2 molecules best explains the answer to Molecules X and Y?

• both molecules should contain carbon and hydrogen atoms

• the arrangement of carbon and hydrogen atoms should repeat in a regular pattern

• the hydrogen atoms should be smaller than the carbon atoms

• the number of hydrogen atoms should be greater than the number of carbon atoms

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NGSS.MS-PS1-1

This subatomic particle of an atom has a NEGATIVE charge.

• Electron
• Proton
• Atom
• Neutron

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NGSS.MS-PS1-1

How many Nitrogen atoms are present?

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NGSS.MS-PS1-1

• Particle W

• Particle X

• Particle Y

• Particle Z

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NGSS.MS-PS1-1

What is the mass of an atom with seven protons, seven neutrons, and eight electrons?

• 7

• 8

• 14

• 22

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NGSS.MS-PS1-1

Where are the Electrons found in the structure of an atom?

• In the nucleus
• In spaces around the nucleus

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NGSS.MS-PS1-1