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