7x/Sc4 - Atoms, Elements, Compounds and Mixtures

What is the correct definition for an 'element'?

• A substance made of only 2 types of atom.

• A substance that cannot be broken down into more than one substance.

• A substance that is not chemically joined together.

• A substance that can be broken down into more than one different substance.

Which of the following is NOT an element?

• Aluminium

• Oxygen

• Carbon Dioxide

• Magnesium

What is the correct definition for the term 'atom'?

• The smallest part of an element that can exist.

• A particle found in gases.

• A positive particle found inside the nucleus.

• The biggest part of an element that can exist.

Which of the following is NOT a subatomic particle?

• Nucleus

• Proton

• Neutron

• Electron

Where is an electron found in an atom?

• Inside the nucleus

• Outside the nucleus

• Outside the atom

• Inside the protons

What is the charge of a proton?

• Negative

• Neutral

• Positive

What is the charge of a neutron?

• Negative

• No charge

• Positive

What is the charge of an electron?

• Negative

• No charge

• Positive

What is the correct definition for a 'compound'?

• Two or more elements that are not chemically bonded.

• Two atoms of an element that are chemically bonded.

• Two or more elements that are chemically bonded.

• A substance that cannot be broken down into other substances.

What is the correct definition for a 'mixture'?

• Two or more different elements that are not chemically bonded.

• Two atoms of the same element that are chemically bonded.

• Two or more different elements that are not chemically bonded.

• A substance that cannot be broken down into smaller substances.