Q6-Q12

What is the symbol for the element in Period 2, Group 7?

• F

• Ar

• K

• Ne

What is the symbol for the element in Period 3, Group 8?

• F

• Ar

• K

• Ne

Which element is found in Period 3, Group 2?

• Na

• Mg

• Al

• Si

Which element is found in Period 6, Group 5?

• Ta

• W

• Re

• Os

What do the elements in Group 8 have in common?

• They are highly reactive.

• They are called noble gases.

• They have 1 valence electron.

• They are alkali metals.

What is the flammability of noble gases?

• Highly flammable

• Non-flammable

• Flammable under pressure

• Flammable in water

What is the number of energy levels in Period 3?

• 1

• 2

• 3

• 4

What is a compound?

• A pure substance made from more than one element

• A mixture of two or more elements

• A single element

• A solution of water and sugar

How are elements in a compound bonded?

• Physically bonded

• Chemically bonded

• Loosely bonded

• Not bonded

What is required to break apart elements in a compound?

• Physical separation

• Chemical reaction

• Magnet

• Filtration