Physical Properties and States of Matter

What is the smallest unit of matter?

• Atom

• Molecule

• Element

• Compound

Which subatomic particle carries a positive charge?

• Electron

• Neutron

• Proton

• Nucleus

Which of the following is an example of a physical property?

• Flammability

• Reactivity

• Boiling point

• Ability to rust

Which state of matter has a definite volume but no definite shape?

• Solid

• Liquid

• Gas

• Plasma