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Electron Configs
Review of electron configurations
| Question | Answer |
|---|---|
| display of ALL the electrons the atom of an element has | electron configuration |
| display of only the valence electrons the atom of an element has | Lewis Dot structure |
| outermost electrons with the highest energy | valence |
| inner electrons with lower energy | core |
| principle energy levels (7 of them) | period |
| subatomic particle responsible for the atom's chemical properties | electrons |
| change in the number of electrons | ion |
| states that 8 is the stable number of valence electrons | octet rule |
| stated that electrons are placed in the lowest energy level first | Aufbau |
| stated that 2 is the max # of electrons in orbital ; must have OPPOSITE spins | Pauli |
| stated that when only 1 electron in orbitals they must have the SAME spin | Hund |
| max # of electrons in f block | 14 (15) |
| max # of electrons in s block | 2 |
| max # of electrons in d block | 10 |
| max # of electrons in the p block | 6 |
| # of orbitals in the s block | 1 |
| # of orbitals in the d block | 5 |
| # of orbitals in the f block | 7 |
| # of orbitals in the p block | 3 |
| rule you must remember about location of d block elements | period minus 1 |
| first 2 elements where the electron configurations rules do not work | Cr and Cu |
| element that is the exception in group 8A | Helium [He] |
| elements in the same group have this in common | similar chemical properties |
| this number tells you the # of valence electrons | group number |
| this numbers tells you the # of ALL electrons | atomic number |
Created by:
cadetjt
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