Chemical Bonding

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

An ionic bond forms when atoms ___________ electrons.

• gain
• share
• increase
• transfer

All chemical bonds involve two atoms sharing electrons.

• True
• False

Chemical bonds form when atoms

• combined nuclei
• give up neutrons
• gain protons
• share or transfer electrons

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NGSS.HS-PS1-2

Bonds that form between two metals are called ______________ bonds.

• ionic 
• covalent
• metallic
• pervasive

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NGSS.HS-PS1-3

If an atom loses two electrons what charge will it have?

• + 2
•  - 2
• +1
• -1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

If an atom gains one electron what charge will it have?

• -2
• -1
• +1

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NGSS.HS-PS1-1

Covalent compounds

• Share electrons
• transfer electrons
• contain a sea of electrons
• conduct electricity

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NGSS.HS-PS1-2

What is the number of valence electrons for Oxygen?

• 8
• 6
• 2
• 1

Tags

NGSS.HS-PS1-1

How many valence electrons in this structure?

• 6
• 5
• 4
• 7

Tags

NGSS.HS-PS1-1