Across
- 4. a negatively charged molecule
- 5. a bond formed by shared electrons
- 6. an element used to make car batteries
- 7. a bond formed by opposing electrons,metal and nonmetal
- 10. this element in the periodic table is used as a rocket fuel igniter
Down
- 1. an electrically charged proton
- 2. a positively charged molecule
- 3. an element used to disinfect water
- 8. a vertical row on the periodic table
- 9. a horizontal row on the periodic table