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STAAR Atoms
atoms
| Term | Definition |
|---|---|
| Proton | Positive particle in nucleus |
| Electron | Negative particle in Cloud |
| Electron Cloud | Surrounds nucleus |
| Neutron | Neutral particle in nucleus |
| Nucleus | Location of Protons & Neutrons |
| Identifies the element | Proton Number |
| Identifies element's chemical properties | Number of Valence Electrons |
| Protons + Neutrons | Atomic Mass |
| Atomic Number | Equal to the number of Protons or Electrons |
| Mass - Atomic Number | Number of Neutrons |