Across
- 2. What is Na?
- 5. Outermost shell is named in (1 word)
- 6. What is Ca?
- 9. Minus in atoms
- 12. Iron + oxygen
- 13. Plus in atoms
- 15. The first letter has to be what in the periodic table
- 16. Good conductor of heat, Shiny, & Malleable
- 17. The group that is in group 0 in periodic table
Down
- 1. ? is iron oxide a reddish brown substance
- 3. Iron & sulfur?
- 4. How tightly they are packed
- 7. Starts with an O & is in periodic table
- 8. What is K?
- 10. Appearance of metal
- 11. Metals melting point
- 13. Substances in apple called ?, react with oxygen to form an brown pigment called melanin
- 14. How many atoms can fit in first shell