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| Pregunta | Respuesta |
| The Nucleus 1) The Nucleus is in the middle of the atom. 2) It contains protons and neutrons. 3) Almost the whole mass of the atom is concentrated in the nucleus 4) But size wise its tiny compared to the atom as a whole. | The Electrons 1) Electrons move around the Nucleus in shells. 2) they're tiny but their paths cover a lot of space. 3) Electron shells explain the whole of chemistry. |
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