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Atomic Structure
Do you know the charge, location and mass of each subatomic particle?
| Question | Answer |
|---|---|
| Protons | Positive subatomic particle found in the nucleus |
| Electrons | Negative subatomic particles found in the electron cloud |
| Neutrons | Neutral subatomic particles found in the nucleus |
| Element's Identity | Number of protons (or Atomic Number) |
| Mass Number | = Protons + Neutrons |
| Number of Neutrons | = Mass Number - Protons |
| Electron Cloud | The negatively charged area surrounding the nucleus |
| Nucleus | The positively charged dense center of an atom that contains protons and neutrons |
| Valence Electrons | Electrons located on the outermost energy level; Determine reactivity |
| Negative | The overall charge of the electron cloud |
| Neutral | Means no charge |
| Positive | The overall charge of the nucleus |
| Subatomic Partilces | Protons, Neutrons and Electrons |
| Atom | The smallest unit of matter |