0654 C9 Periodic Table Review

Which Halogen is most reactive?

• Bromine

• Chlorine

• Iodine

• Flourine

Which Alkali Metal is least reactive?

• Calcium

• Sodium

• Magnesium

• Lithium

Answer explanation

Only Sodium and Lithium are Alkali Metals, and Lithium is the least reactive of the two.

Which is the correct Potassium ion?

• K+

• K2+

• K-

• K2-

Balance the following equation:

Na (s) + H20 (l) --> NaOH(aq) + H2(g)

• 1, 1, 2, 2

• 2, 1, 2, 1

• 2, 2, 2, 1

• 2, 2, 2, 2

What is produced when an Alkali Metal (M) reacts with Oxygen (O2)?

• MO

• M202

• M2O

• MO2

Answer explanation

Oxygen needs 2 electrons to fill its valence shell, so must bond with 2 Alkali Metal ions to complete the reaction.

Transition metals have more than one ion because they have different _________ ______.

(Hint: each "_" is for a letter).

Transition metals are very colourful.

What colour is copper (II) sulphate?

• Blue

• Green

• Yellow

• Red

What are the most common oxidation states of Iron (Fe)?

• Fe+, Fe-

• Fe-, Fe2-

• Fe2+, Fe3+

• Fe2+, Fe4+

What is copper commonly used for?

• To make jewelry

• To make batteries and to prevent rust

• The outer layer on ships

• Electrical cables and pipes

Halogens can ________ other Halogens if they are more reactive.

Answer explanation

You need to know the name of 'displacement' reactions!