Across
- 2. sub-atomic particle with no charge
- 4. # of protons = the ________
- 6. each horizon or row
- 8. sub-atomic particle with - charge
- 9. each vertical column
- 10. another name for metalloid
- 12. Shiny, conducts heat and electricity
- 14. substance that has identical building block (2 words)
- 17. element with the simplest atom formation
- 18. happening at reqular intervals
- 19. has definite volume and indefinite shape
Down
- 1. protons + neutrons
- 3. a property that is unique for each element
- 5. has properties of metals and nonmetals
- 7. a puresubstance that can not be separated into simpler substances
- 11. another word for group
- 13. has indefinite volume and shape
- 15. has definite volume and shape
- 16. dull, doesn't conduct heat and electricity
- 18. sub-atomic particle with + charge