Chemical Bonding gr9

An ionic bond forms when atoms ___________ electrons.

• gain
• share
• increase
• transfer

Which type of bond has a transfer of an electron from on atom to another?

• Polar Covalent 
• Non Polar Covalent
• Ionic
• Metallic

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

Tags

NGSS.HS-PS1-2

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

Tags

NGSS.HS-PS1-1

Covalent compounds

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

Tags

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

A bond that forms when electrons are transferred is called a/an

• ionic bond
• covalent bond
• hydrogen bond