Periodic Table, Elements and Compounds

Which element below is a non-metal?

• Beryllium

• Manganese

• Astatine

• Potassium

Which is not a characteristic of metals in general?

• sonorous

• ductile

• malleable

• low boiling point

Write down the chemical symbol for the element niobium.

State the Group number of the element Xenon.

The horizontal row of the Periodic Table is known as ....................

The vertical columns in the Periodic Table are known as .............................

Which substance below cannot be classified as a compound?

• hydrocarbons

• sand (silicon dioxide)

• air

• salt (sodium chloride)

Metals are found on ........................... sde of the Periodic Table.

• right

• left

Which are properties of compounds?

• A compound is made up of elements combined in a fixed ratio.

• Energy is not given out or taken in when a compound is formed.

• A compound boils and melts over a range of temperatures.

• A compound cannot be separated into its constituent elements by physical methods.

State the elements present in carbon dioxide. Write down their chemical symbols, separated by a comma (,).