Across
- 5. positive charge in the atom
- 6. protons plus neutrons
- 7. Neutral charge in the atom
- 9. the number of electrons in the outermost energy level of the electron cloud
- 10. number of protons in an atom and can be used to identify an element
- 15. mix of metals and non metals
- 16. rows of the periodic table
Down
- 1. negative charge in the atom
- 2. holds electrons
- 3. how much space an object takes up
- 4. mostly gases but include dull, brittle solids and display insulating properties
- 8. holds the protons and the neutrons
- 11. greatest luster, the best conductivity, and greatest malleability
- 12. building block for all matter
- 13. everything like air and water, has volume
- 14. columns on the periodic table of elements