RETEST CUA 5- Chemical Bonding

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

• -2
• -1
• +1
• +2

A bond between two nonmetal atoms is a __________ bond.

• ionic

• nuclear

• metallic

• covalent

Which of the following is NOT a covalent bond?

• K₂S

• H₂O

• I₂

• CO₂

Which of the following describes covalent bonds?

• Bonds form because of opposite charges

• electrons are shared to fill outer electron shells

• Electrons are transferred between atoms

• Covalent bonds are magical

Covalent bonds are between...

• two or more nonmetals
• sodium and chlorine
• metals and metals
• metals and nonmetals

Ionic bonds form between ---

• nonmetals.

• metals and nonmetals.

Which of the following is NOT an ionic bond?

• NH₃

• KCl

• K₃N

• NaCl

A bond between a metal atom and a nonmetal atom is a __________ bond.

• ionic

• atomic

• metallic

• covalent

Where are metals located on the periodic table?

• Blue
• Green
• Red

An ionic bond forms when atoms ___________ electrons.

• gain
• share
• increase
• transfer