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Atoms
| Question | Answer |
|---|---|
| The Smallest unit of an element that maintains the properties of that element. | Atom |
| A Subatomic particle that has a negative charge. | Electron |
| In Physical science an atom's central region made up of protons and neutrons. | Nucleus |
| A region around the nucleus of an atom where electrons are found. | Electron Cloud |
| A Subatomic particle that has a positive charge and found in the nucleus. | Proton |
| A unit of mass that describes the mass of an atom or molecule. | Atomic Mass Unit |
| A subatomic particle with no charge, found in the nucleus. | Neutron |
| The number of protons in the nucleus of an atom. | Atomic Number |
| An atom that has the same number of protons as other atoms of a element. | Isotope |
| The sum of the numbers of protons and neutrons in the nucleus of an atom. | Mass Number |
| The mass of an atom expressed in atomic mass units. | Atomic mass |