NGSS.MS-PS1-1

How many Chlorine are in MgCl₂?

• 2
• 1
• 3

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NGSS.MS-PS1-1

What part of the atom is the arrow pointing to?

• nucleus
• proton
• electron shell
• electron

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NGSS.MS-PS1-1

An atom with atomic number 6 would have how many protons?

• 6
• 12
• 3
• Cannot be determined 

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NGSS.MS-PS1-1

How many atoms of aluminum are on each side of the following equation: 4Al + 3O₂ --> 2Al₂ O₃

• 2
• 6
• 1
• 4

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NGSS.MS-PS1-1

Which one is a compound?

• Co
• Br
• Fe
• CO

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NGSS.MS-PS1-1

Contains only one kind of atom.

• Element
• Compund
• Mixture

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NGSS.MS-PS1-1

How many Aluminum atoms are in Al₂O₃?

• 3

• 5

• 2

• 1

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NGSS.MS-PS1-1

What does b represent?

• Proton

• Neutron

• Electron

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NGSS.MS-PS1-1

The nucleus of an atom is made up of

• electrons only

• protons only

• protons and neutrons

• neutrons only

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NGSS.MS-PS1-1

Solid carbon dioxide, more commonly known as dry ice, has the chemical formula _______.

• CO

• CO₂

• CO₃

• CH₄

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NGSS.MS-PS1-1