Lewis Structures Review Set #2

In the correct Lewis structure for the methane (CH4) molecule, how many unshared electron pairs surround the carbon?
1. 2
2. 8
3. 4
4. 0
Which of the following is NOT a valid Lewis structure?
Which of the diatomic elements has a double bond between its atoms?
1. hydrogen
2. nitrogen
3. oxygen
4. flourine
According to the HONC rule, how many covalent bonds form around carbon? (Spell your answer.)
According to the HONC rule, how many covalent bonds form around hydrogen and the halogens? (Spell your answer.)
Which of the following elements will NOT be surrounded by an octet of electrons in a correctly drawn Lewis structure?
1. Chlorine
2. Oxygen
3. Hydrogen
4. Carbon
In drawing Lewis structures, a single line (single bond) between two elements represents:
1. a shared pair of electrons
2. an octet of electrons
3. an unshared pair of electrons
4. a shared electron