IGCSE Chemistry Chapter 8

Properties of alkali metals are: (click ALL that apply)

• Very reactive

• Soft

• Make coloured compounds

• React slowly with water

Group I properties are: (click ALL that apply!)

• Melting points of elements increase down the group

• Elements get softer down the group

• Elements get more reactive down the group

Sodium burns with ______ flame.

• Yellow

• Blue

• Red

• Orange

Potassium burns with _______ flame.

• Blue

• Red

• Yellow

• Lilac

Group II metals are called _______.

• alkalous metals

• earth metals

• alkaline water metals

• alkaline earth metals

Magnesium burns with characteristic _________ flame.

• white

• red

• green

• blue

Most reactive Group II metal is _______.

• Barium

• Beryllium

• Calcium

• Magnesium

Compared to magnesium, describe reaction of calcium with water.

• More vigorous

• Less vigorous

• Doesn't react

• Same

Aluminium properties are: (click ALL that apply!)

• Corrosive

• Light

• Strong

• Weak electrical conductor

Because of its properties, aluminium is mostly used to make __________.

• Aeroplanes

• Cars

• Ships

• Tanks