Ch. 7 Chemistry

Why do atoms bond?

• to lose stability and gain energy

• to gain stability and lose energy

• to transfer electrons

• to share electrons

Tags

NGSS.HS-PS1-1

Chemical bonds between atoms involve the rearrangement of __________ to

maximize stability.

• protons

• neutrons

• electrons

• neutrinos

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What type of bond would you expect in a compound of oxygen and sodium?

• ionic

• metallic

• covalent

• polar covalent

A bond that forms between two or more atoms that have high electron affinities is

most likely a(n) __________ bond.

• covalent

• ionic

• metallic

• delocalized

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following represents a nonpolar covalent molecule?

• NaCl

• Br2

• HCN

• Au

The polarity of a bond depends on the difference in the atoms’ __________.

• electron affinities

• electronegativities

• atomic radii

• ionization energies

To achieve an octet when combining with potassium, would an atom of a Group 16

element be expected to lose, gain, or share electrons?

• lose

• gain

• share

• This cannot be determined from the given information.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following does not exist as a diatomic molecule?

• argon

• hydrogen

• chlorine

• oxygen

What do we call the attraction between opposite electrical charges?

• electric force

• electron sharing

• electrostatic force

• electrical affinity

Tags

NGSS.HS-PS2-4

What is the Lewis structure for H2S?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-2