An interaction that holds two atoms together called?

• Chemical Bond

• Covalent Bond

• Ionic Bond

• Metallic Bond

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NGSS.HS-PS1-3

Typically, atoms are more stable when they are

• bonded together

• apart from each other

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NGSS.HS-PS1-4

Why do atoms bond?

• They typically don't bond

• To add or take away energy levels

• To have a full valance shell.

• To have a full inner shell

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NGSS.HS-PS1-2

Valence electrons are

• neutral (no charge)

• found in the outer most energy level of the atom

• equal to the number of protons

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons in this structure?

• 6
• 5
• 4
• 7

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NGSS.HS-PS1-1

How many more electrons are needed to fill an outermost energy level of a Carbon atom?

• its already full, 0 needed
• 2
• 4
• carbon is a nonmetal, it has no electrons

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NGSS.HS-PS1-1

Which is the correct Lewis Structure for oxygen?

• 
• 
• 
• 

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following has a full valence shell?

• Oxygen
• Neon
• Barium
• Carbon

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which elements are least likely to react with other elements?

• metals
• nonmetals
• noble gases
• transition elements

2. Ionic Bonding involves:

• The transfer of protons

• The transfer of neutrons

• The transfer of electrons

• None Of the above

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NGSS.HS-PS1-2