Across
- 2. row on periodic table
- 3. Vertical column on Periodic table
- 6. in all atoms has - charge
- 8. gases conduct electricity low boiling point
- 9. same number of protons but different neutrons
- 10. mixture of metals and non metal like tin
- 13. total mass of atom
- 14. particle with no electric charge
Down
- 1. table chemical elements chart
- 4. subatomic particle with a + charge
- 5. readily forms positive ions
- 7. time of half reduction from value
- 8. center core of atom largest mass
- 11. number of protons in the nucleus of atom
- 12. net electric charge due to loss or gain of electrons