Across
- 2. horizontal rows on a periodic table
- 3. on the right side of the periodic table
- 6. atomic weight is 1
- 11. average mass of an atom of an element
- 12. on the left side of the periodic table
- 13. the atomic weight is 4
- 16. atomic weight of 7
- 18. chemical symbol is mg
- 23. inert gas
- 25. the atomic weight is 56
- 26. a symbol which determines the chemical
- 27. Number of protons and neutrons in a nucleus
- 28. has the atomic number of 5
- 29. inert gas
Down
- 1. subatomic particle
- 4. metals that make up the first column (group) of the periodic table
- 5. any group of rare gases
- 7. A complex consisting of two atoms.
- 8. atomic weight is 11
- 9. compound composed of a metal and oxygen.
- 10. a family that has 5 electrons
- 14. something that has groups and periods
- 15. A taxon (group of organisms) made up of related genera.
- 17. vertical columns on a periodic table
- 19. chemical symbol is TI
- 20. The number of protons in a nucleus
- 21. something that can be found in milk
- 22. substance composed of atoms with identical atomic number.
- 24. gas in the periodic table