Year 9 science quiz (Chapters 1, 2, 4-8)

How many neutrons does this atom have? (Atomic mass is 23)

• 10

• 11

• 12

• 13

Which of these is NOT a group 1 element?

• Lithium

• Rubidium

• Magnesium

• Potassium

• Uranium

Electrons have a ________________ charge, where as protons have a ________________ charge

• Positive, Negative

• Positive, Neutral

• Negative, Positive

• Negative, Neutral

Which of these elements will have the BIGGEST atomic radius?

• Sodium

• Magnesium

• Chlorine

• Argon

What happens when Magnesium reacts with Oxygen in the air

• You get Magnesium Hydroxide

• You get Magnesium Oxide

• You get Magnesium Hydroxide and Hydrogen gas

• You get Magnesium Oxide and Hydrogen gas

Which of these metals is the MOST REACTIVE

• Iron

• Aluminium

• Zinc

• Copper

What is the best definition of a salt?

• A product of Metal with Alkali

• A product of Metal with Acid

• A non-metal compound

• A metal compound

What is the salt name for Sulfuric Acid?

• Sulfide

• Sulfite

• Sulfate

• Sulferate

Which of these is an EXOTHERMIC PROCESS?

• Freezing

• Melting

• Condensation

• Combustion

• Evapouration

What happens to particles when you INCREASE its SURFACE AREA?

• The number of particles increase

• The speed of the particles increase

• The space between the particles increase

• The exposure of the particles increase