Each column (↕) in the periodic table is called a ...

• period
• group
• cluster
• category

Which group of the periodic table is composed of very stable elements?

• alkali metals

• alkaline earth metals

• halogens

• noble gases

Elements which are shiny, conduct electricity and heat are called ....

• metals
• nonmetals
• metalloids
• halogens

The atoms along the zig-zag staircase (coloured blue in the diagram) are called ...

• metals

• nonmetals

• metalloids

• noble gases

Which of the following elements is a halogen?

• Helium

• Chlorine

• Oxygen

• Beryllium

Which of the following elements is an alkali metal?

• Magnesium

• Iron

• Sodium

• Oxygen

Metalloids properties can be described as...

• same as nonmetals

• good conductors

• unique characteristics of metals and nonmetals

• same as metals

The properties of an element can be predicted from...

• its name

• its group

• its colour

• its symbol

Which coloured section is the metal category in the diagram? 

• dark blue
• light blue
• purple
• pink

What coloured section is the least reactive on the diagram?

• pink

• red

• dark blue

• orange