1/14 Quiz Review

1/14 Quiz Review

Multiple Choice

How many electrons are around the oxygen atom in H₂O?

• 4 because I see four dots

• 6 because oxygen has six valence electrons

• 8 because covalent bonding allows atoms to share electrons

Multiple Choice

How many electrons around the atom X?

• 2 because I see two dots

• 4: two dots plus two bonds

• 6: two dots plus two bonds

• 8 because covalent bonding

Common mistake #1

• 1 bond = 2 electrons

• Don't move too fast!

Multiple Choice

Which is the symbol for potassium?

• P

• K

• Po

• Pa

Common mistake #2

• P for phosphorus

• K for potassium

Common mistake #2

• P for phosphorus

• K for potassium

Common mistake #2

• P for phosphorus

• K for potassium

Multiple Choice

Which one is PS₅?

• potassium pentasulfide

• phosphorus pentasulfide

PS5 memes

PS5 memes

PS5 memes

Multiple Choice

Which of the following structures for formaldehyde gives each atom a complete octet?

Common mistake #3

• Incomplete octets

• Count carefully

Multiple Choice

CO has 10 total valence electrons.

Which of the following is the correct Lewis structure for CO?

Common mistake #4

• Too many electrons

• Count carefully

Multiple Choice

Which of the following lists the naturally occurring diatomic molecules?

• BrINClHOF

• BrINClBOP

• BrINKLiHOP

• WRnKLiSOCK

BrINClHOF

• Bromine (Br₂)

• Iodine (I₂)

• Nitrogen (N₂)

• Chlorine (Cl₂)

• Hydrogen (H₂)

• Oxygen (O₂)

• Fluorine (F₂)