Across
- 1. Arranged the elements by atomic number
- 3. Devised a pattern in the 1800's
- 5. Resides in the nucleus
- 6. Have a positive charge
- 8. Located in the middle of the atom
- 11. A ___ is a good conductor of electricity
- 13. Have no charge or are neutral
- 14. Zn is the abbreviation for
Down
- 2. Electrons reside in ___ around the nucleus
- 3. Neutrons and protons make up the atomic ___
- 4. Are the rows on a periodic table
- 7. Chemical Symbols contain either 1 or 2 ____
- 9. A metal is an ___ that is generally shiny
- 10. Have a negative charge
- 12. The basic unit of matter