Across
- 3. An atom, radical, or molecule that has gained or lost one or more electrons and has a negative or postitve charge
- 4. A unit or quantum of light
- 8. An electron that is found in the outermost shell of an atom that determines the atoms chemical properties
- 9. I have the atomic symbol Hg, but I am not Hydrogen
Down
- 1. An element or compound that conducts electric current better than an insulator but not a conductor
- 2. 1s^2 2s^2 2p^2
- 4. states that repeating chemical and physical properties of elements change periodically with atomic numbers of the elements
- 5. A region in an atom where there is a high probability of finding electrons
- 6. An element that conducts heat and electricity poorly
- 7. An element that is shiny and conducts heat and electricity well