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Atom Structure Vocab
Vocabulary for Atomic Structure . MEDIUM
| Term | Definition |
|---|---|
| Atom | The smallest particle of an element that retains its identity in a chemical reaction. |
| Electron | A negatively charged subatomic particle. |
| Proton | A positively charged subatomic particle. |
| Neutron | A subatomic particle with no charge. |
| Nucleus | The tiny central core of an atom and is composed of protons and neutrons. |
| Atomic number | The number of protons in the nucleus of an atom of an element. |
| Mass number | The total number of protons and neutrons in an atom. |
| Isotopes | Atoms that have the same number of protons but different numbers of neutrons. |
| Atomic mass | A weighted average mass of an atom. |
| Electron | A subatomic particle whose mass is negligible. |
| Neutron | A subatomic particle that has the same mass as proton. |
| Proton | A subatomic particle that has the same mass as neutron. |
Created by:
Teacher Ida