Unit 4 Bonding Review

Carbon dioxide is what type of bond?

• ionic

• polar covalent

• non-polar covalent

• metallic

Which of the following elements has the lowest electronegativity?

• Na

• Rb

• Cl

• S

An atom with 3 valence electrons "wants" a full shell, so it can either gain 5 or lose 3. Which is more likely to occur?

• Gain 5

• Lose 3

• Nothing

Write the correct formula for Sodium Chloride.

• SC

• SCl

• NaCl

• NaCl₂

Mg₃N₂

• Magnesium nitride

• Magnesium (II) nitride

• Trimagnesium dinitrogen

How do covalent bonds form?

• By donating and receiving valence electrons between atoms.

• Scientists still aren't sure.

• Opposite slight charges attract each atom in the compound.

• Sharing valence electrons between atoms

What two types of atoms make a covalent bond?

• 2 Nonmetals

• 1 Metal and 1 Nonmetal

• 2 Metals

• 2 Noble Gases

How many valence electrons does hydrogen have?

• 1

• 2

• 3

• 4

What is the proper name for CH_4?

• Monocarbon hydride

• Carbon tetrahydride

• Monocarbon tetrahydride

What is the proper name for S₂O₂?

• Sulfur oxide

• Sulfur dioxide

• Sulfur (II) oxide

• Disulfur dioxide