Year 8 Chemistry

In an element the atoms are

• Always bonded to each other

• Two different types

• A mixture of different kinds

• All the same

Which statement about atoms is NOT correct

• They have a nucleus

• Electrons are not found in the nucleus

• Protons and Neutrons are found in the nucleus

• Protons and electrons are found in the nucleus

Which is NOT a property of metals

• Have a low melting point

• Have a high melting point

• Malleable

• Ductile

Which is a property of non-metals?

• High boiling point

• High melting point

• Low boiling point

• Most are solid at room temperature

In the periodic table the columns are called

• Periods

• Groups

• Rows

• Octaves

Mendeleev produced the first version of the modern periodic table. He arranged the elements so that

• The metals are all on the right

• They get lighter as you move from the left to the right

• Those with similar properties are in the same period

• Those with similar properties are in the same group

Mendeleev arranged the elements in the periodic table in order of

• Decreasing atomic weight

• Increasing atomic weight

• Decreasing number of neutrons

• Decreasing number of electrons

When Magnesium is burnt, what is formed?

• magnesium oxide

• magnesium dioxide

• magnesium sulfate

• magnesium carbonate

When sulfur is burnt what is formed/

• sulfur dioxide

• potassium sulfide

• sulfur oxide

• magnesium sulfide

Metal oxides are all

• alkaline

• acidic

• neutral