Gr 11 CW

Which of the following is not an ionic compound?

• sodium chloride

• aluminum oxide

• hydrogen fluoride

• magnesium fluoride

a substance that can be broken down by physical or chemical means is known as _____.

Match the following

• Magnesium

• Mg

• Sodium

• Na

• Potassium

• P

• Phosphorous

• K

• Manganese

• Mn

Match the following

• N

• Iron

• C

• Carbn

• Ne

• Copper

• Fe

• Neon

• Cu

• Nitrogen

Which of the above figures is/are considered a pure element?

• K

• L

• M

Which of the above figures represent a pure compound?

• K

• L

• M

All of the following are polyatomic elements except____________.

• Zn

Which of the following is a diatomic element?

• Na

show the formation of ionic bond between calcium and fluoride