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Bio atoms
| Question | Answer |
|---|---|
| Atomic number | proton |
| Atomic mass | protons+neutrons |
| Isotopes | same element different neutron amount |
| ions | an atom or group of atoms that has an electric charge due to a difference in the number of protons and electrons |
| periodic groups 1-13 | gain electrons |
| periodic groups 14 | gain or lose electrons |
| periodic groups 15-17 | lose electrons |
| periodic group 18 | stable |
| first shell | 2 |
| second electron shell | 8 |
| third electron shell | 8 |
| fourth electron shell | 14 |