Periodic Table Form 2

How are the elements arranged by their atomic number?

• Horizontally
• Vertically

Down the group, the density of the metals generally...

• increases
• decreases

Down the group, the melting point of the metals generally..

• increases
• decreases

Down the group, the boiling point of the metals generally..

• increases
• decreases

Sodium is softer metal than lithium. Describe how you think the softness of potassium compared with sodium

• sodium softer than potassium
• potassium softer than sodium

Rubidium is found below potassium in the Periodic Table, therefore ...

• less reactive than potassium
• more reactive than potassium

Complete the word equation:
Sodium + Water --> ___________ + Hydrogen

• sodium oxide
• sodium hydroxide

Group 1 metals are also known as

• alkali metals
• alkaline earth metals
• halogen
• noble gases

Choose INCORRECT observation when lithium are added to water

• blue litmus paper turn red when tested on water
• red litmus paper turns blue when tested on water
• lithium float on the surface of water
• lithium fizzes

Choose correct elements present in Group 2

• lithium, sodium, potassium
• beryllium, magnesium, calcium
• fluorine, chlorine, bromine
• helium, neon, argon