Science Crossword
Across
- 2. its properties are intermediate between those of metals and solid nonmetals or semiconductors
- 3. net electrical charge
- 6. negative charge
- 9. colors
- 11. not a metal
- 12. a radioactive form of a element
- 14. loss of energy by radiation
- 16. ion negative electrical charge
- 18. the number of protons in an atom
- 20. a thing in time
Down
- 1. what is a cation(another word for a certain ion)
- 4. some activity about the radio
- 5. group 1
- 7. positve charge
- 8. this thing isnt reactive
- 10. amus are 57 and 71
- 13. the center of a atom.
- 15. a model for electrons
- 17. nonmetalic
- 19. solid