CHAPTER 6 : PERIODIC TABLE

What is the smallest particle of matter?

• Molecule

• Atom

• Element

• Compound

Which particle has a positive charge?

• Neutron

• Electron

• Proton

• Atom

What do we call two or more elements combined chemically?

• Atom

• Molecule

• Mixture

• Compound

Which of the following is a non-metal?

• Sulphur

• Aluminium

• Copper

• Iron

What is the process to separate a mixture of solid and liquid?

• Distillation

• Sedimentation

• Filtration

• Chromatography

Which of the following is a characteristic of metals?

• Dull appearance

• Good conductor of electricity

• Brittle

• Low density

What is a mixture?

• Two or more elements mixed chemically

• A compound

• Two or more elements mixed physically

• A single type of atom

What is the simplest form of a substance?

• Molecule

• Element

• Compound

• Mixture

Which method is used to separate a liquid-liquid mixture?

• Filtration

• Distillation

• Magnetic separation

• Chromatography

What is formed when iron and sulphur are mixed chemically?

• Iron sulphide

• Iron hydroxide

• Iron chloride

• Iron oxide