Grade 8 Catch Up

Who believed that atoms were indivisible & indestructible?

• Democritus

• Aristotle

• Lavoisier

• Proust

Who identified the first subatomic particle?

• Rutherford

• Lavoisier

• Dalton

• Thomson

What is the loss of an electron which results in a positive charge called?

• Oxidation

• Reduction

• Isotopes

• Compounds

Who discovered the 'structure' of the atom using the gold foil experiment?

• Rutherford

• Thomson

• Democritus

• Lavoisier

What are atoms that contain the same number of protons but have different numbers of neutrons called?

• Reduction

• Isotopes

• Compounds

• Oxidation

Who believed that atoms have four core elements?

• Democritus

• Aristotle

• Proust

• Lavoisier

Which of the following is the tiniest particle of matter?

• Element

• Compound

• Atom

• Substance

Who believed that matter is not created or destroyed during a chemical reaction?

• Lavoisier

• Proust

• Dalton

• Rutherford

It is the gain of an electron which results in a negative charge.

• Reduction

• Oxidation

• Proton

• Nucleus

These are formed when atoms of different elements combined.

• Compounds

• Atom

• Substance

• Element