Chemistry Crossword Puzzle
Across
- 3. most dense element
- 5. charge of an atom when there are less electrons than protons
- 7. element without a family
- 10. positively charged subatomic particles
- 11. where elections can be found
- 13. elements in group 18
- 15. most abundant natural element on earth
- 16. greatest chemist of all time
- 17. Atom with a positive or negative charge
- 18. family found in group 18
- 20. family found in d-block
Down
- 1. charge of an atom when there are more electrons than protons
- 2. vertical columns on the periodic table
- 4. who organized the periodic table
- 6. electrons in the outermost energy level of an atom
- 8. rarest naturally occurring element in earth's crust
- 9. major contributor to the atomic bomb
- 12. charge of an atom when there are the same number of electrons and protons
- 14. force of attraction or repulsion by charged particles
- 19. Group 1 of the periodic table