Periodic Table
Across
- 2. can be shiny or dull and good or bad conductors
- 6. most common element in this group was once considered a precious metal
- 8. most react to form salts
- 9. occurs or repeats at regular intervals
- 10. states that chemical and physical properties of elements change periodically with the atomic number
- 11. solids at room temperature except for element this group is named after
- 12. unreactive nonmetals and gases at room temperature
- 15. most reactive metals and can be cut with a knife
- 16. first name of the Russian chemist discovered a pattern to the elements
- 17. largest family of elements
- 19. shiny and good conductors of heat and electricity
Down
- 1. forms a wide variety of compounds
- 3. shiny, reactive metals and some are used to make steel
- 4. the element this group is named after is necessary for things to burn
- 5. unstable, radioactive and most are made in laboratories
- 7. metals with two outer-level electrons
- 10. a horizontal row of elements
- 13. only family with only one element and and it is also found in stars
- 14. a vertical column of elements
- 18. dull and poor conductors of heat and electricity