Across
- 1. The _____ has a positive charge.
- 4. A horizontal row on the periodic table is called a _____.
- 5. The _____ has a negative charge.
- 6. The _____ constant is the number of particles in 1 mole of substance.
- 10. The _____ of 1 mole of carbon is 12.0 g.
- 11. The _____ air at sea level is about 1 atm.
Down
- 2. The _____ has no charge.
- 3. The _____ of oxygen is about 16 g/mol.
- 7. The units for _____ are L and m^3
- 8. A vertical column on the periodic table is called a _____.
- 9. The _____ is the center of an atom.