Chemical Bonds Review

A positively or negatively charged particle.

• covalent bond

• ion

• oxidation number

• subscript

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NGSS.HS-PS1-3

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A chemical bond between oppositely charged ions.

• Covalent bonds

• Ionic Bonds

• Ion

• Compound

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NGSS.HS-PS1-3

A chemical bond formed between shared atoms.

• covalent bond

• chemical bonds

• compound

• ionic bonds

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NGSS.MS-PS1-5

Where are valence electrons located?

• In the inner-most shell of an atom.
• In the outer-most shell of an atom.
• Between the inner and outer shells of an atom.
• Inside the nucleus of an atom.

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NGSS.HS-PS1-1

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How many valence electrons do most atoms need to have a complete outer shell and be happy?

• 1
• 8
• 10
• 5

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NGSS.HS-PS1-1

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If an element gives away an electron, what type of charge will it have?

• Positive.

• Negative.

• Neutral.

If an element gains an electron, what type of charge will it have

• Positive.

• Negative.

• Neutral.

How do covalent bonds form?

• Atoms share electrons to fill their valence shell.
• Atoms gain or lose electrons to fill their valence shell.
• Atoms donate electrons to a "sea" of electrons.

Tags

NGSS.HS-PS1-1

Ionic bonds form between metals and ____.

• metalloids
• metals
• nonmetals

This is a correct dot diagram for oxygen (O)

• true
• false

Tags

NGSS.HS-PS1-1