Diversity of Matter Quiz

What is an element?

• A compound formed by chemical combination of elements

• A pure substance made up of only one kind of atom

• A mixture of two or more substances

• A substance made by physical combination of two or more elements

Which of the following is a compound?

• Oxygen

• Water

• Gold

• Iron

What does the atomic number (Z) represent?

• The total number of particles in an atom

• The mass of an atom

• The number of neutrons in an atom

• The number of protons in an atom

Which of the following elements has the chemical symbol 'Na'?

• Nitrogen

• Neon

• Calcium

• Sodium

What is the charge of a neutron?

• Variable charge

• No charge

• Negative

• Positive

What is the maximum number of electrons that can occupy the first shell of an atom?

• 2

• 8

• 18

• 32

Which of the following is a mixture?

• Hydrogen

• Water

• Bronze

• Oxygen

What is the mass number (A) of an atom?

• The total number of electrons

• The sum of protons and neutrons

• The number of neutrons only

• The number of protons only

Which of the following elements is represented as 12C?

• Cobalt

• Copper

• Calcium

• Carbon

What is the nature of attraction between protons and electrons?

• Attract each other

• Only attract under certain conditions

• Repel each other

• Have no effect on each other