4 Written Questions
4 Multiple Choice Questions
- A subatomic particle of teh atom that carries a negative electric charge.
- A change in matter that does not change the identity of a substance. Physical changes can be reversed by normal physical means.
- A collection of identical atoms.
- A characteristic feature that can be observed and used to describe an object or substance.
3 True/False Questions
atomic number → The smallest particle of matter that maintains the property of an element. Atoms are composed of protons, neutrons, and electrons.
neutrons → A subatomic particle of teh atom that carries a negative electric charge.
atom → The stuff around us: anything that has mass and occupies space.