Across
- 3. a subatomic particle with about the same mass of a proton but without a electrical charge
- 5. a stable subatomic particle with a charge of a negative electricity
- 6. the arrangement of electrons in the energy levels, sublevels and orbitals of atoms
- 7. the energy required to remove an electron from an atom
- 9. Level, main energy level or distance of an electron from the nucleus; (n); correspond to the rows 1-7 on the Periodic Table
- 11. states that each electron occupies the lowest energy orbital available
- 13. Proposed 1st periodic table where elements were arranged according to Atomic Mass
- 14. electrons occupy equal energy orbitals to maximize the number of unpaired e-s
- 15. regions within the energy levels; corresponds to the block grouping s,p,d,f on the Periodic Table
- 16. 3 mutually perpendicular dumbbell shaped orbitals; second to fill from 2nd energy level on up, can hold max of 6 electrons
- 18. their shapes are even more complex than s, p, or d orbitals; can hold a total of 14 electrons in 7 sub-shells; in the fourth and fifth energy levels
- 19. revised periodic table and arranged elements according to Atomic Number
- 20. 5 orbitals of cloverleaf shape; third to fill for any energy level; beginning in the third shell, can hold a total
Down
- 1. the energy change occurring when an anion of the element in the gaseous phase loses an electron
- 2. maximum of two electrons may occupy an atomic orbital, but only if they have opposite spins
- 4. Is the smallest constituent unit of ordinary matter that has the properties of a chemical element
- 8. the tendency for an atom to attract electrons to itself when it is chemically combined with another element
- 10. spherical orbitals, first to fill for any energy level: can only hold 2 electrons
- 12. an electron in the highest occupied energy level of an atom.
- 17. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge.