Covalent Bonding
Lewis Structures
Naming Covalent Compounds
Writing Chemical Formulas
Polarity & Nonpolarity
100

What type of elements form covalent bonds?

Nonmetals

100

What do dots in a Lewis Structure represent?

Valence electrons

100

What prefix means one?

Mono-

100

Write the formula for carbon monoxide.

CO

100

What is a polar molecule?

A molecule with an uneven distribution of charge

200

What is shared between atoms in a covalent bonds?

Electrons

200

How many valence electrons does oxygen have?

6

200

What is the name is CO2?

Carbon dioxide

200

Write the formula for sulfur dioxide.

SO2

200

Is water (H2O) polar or non polar?

Polar

300

What is a molecule?

Two or more atoms held together by covalent bonds

300

How many valence electrons does Nitrogen have?

5

300

What prefix means 7?

Hepta

300

Write the formula for dinitrogen tetroxide.

N2O4

300

Is carbon dioxide (CO2) polar or non polar?

Nonpolar

400

What type of bond shares two pairs of electrons?

Double bond

400

What rule states that atoms tend to have 8 valence electrons?

Octet rule

400

What is the name of N2O5?

Dinitrogen pentoxide

400

Write the formula for phosphorus pentachloride.

PCL5

400

Which molecule is polar: CO2 or H2O?

H2O

500

What type of bond shares three pairs of electrons?

Triple bond

500

What is the Lewis structure used to show?

The arrangement of valence electrons and bonds

500

What is the name of PCL3?

Phosphorus trichloride

500

Write the formula for tetraphosphorus decoxide.

P4O10

500

What shape must a molecule usually have to be non polar?

A symmetrical shape