Chemical Bonds

How are covalent bonds formed?

• Sharing of electrons
• Transfer of electrons

Why do elements bond?

• To be friends
• To create a new element
• To become stable

Same repel, opposites

• avoid
• attract
• push
• pull

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NGSS.HS-PS2-4

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What is a valence electron?

• The sum of neutrons and protons.
• The # of electrons in the last shell.
• A type of bond.
• A popular compound.

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Group numbers on the periodic table help us determine 

• The number of valence electrons
• Color of the elements

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NGSS.HS-PS1-1

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Where are metals located on the periodic table?

• Blue
• Green
• Red

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NGSS.HS-PS1-1

Where are the nonmetals located on the periodic table? 

• Blue
• Red
• Green

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NGSS.HS-PS1-1

Where are the metalloids located on the periodic table?

• Blue
• Red
• Green

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NGSS.HS-PS1-1

Two or more atoms held together by a chemical bond is called what?

• A molecule
• A molecure

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NGSS.MS-PS1-1

Which of these is not a real bond in chemistry?

• James
• Ionic
• Covalent