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vocabulary 4
| Term | Definition |
|---|---|
| Nucleus | dense, positively charged mass located in the center of the atom |
| proton | positively charged subatomic particle that is found in the nucleus of an atom |
| electron | negatively charged subatomic particle that is found in the space outside the nucleus |
| neutron | neutral subatomic particle that is found in the nucleus of an atom |
| atomic number | number of protons in an atom |
| mass number | sum of the protons and neutrons in the nucleus of an atom |
| isotopes | atoms of the same element that have different numbers of neutrons and different mass numbers |
| energy levels | the possible energies that electrons in an atom can have |
| electron cloud | visual model of the most likely locations for electrons in an atom |
| orbital | region of space around the nucleus where an electron is likely to be found |
| electron configuration | arrangement of electrons in the orbitals of an atom |
| ground state | when all the electrons in an atom have the lowest possible energies |
Created by:
cedric.harris
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