Periodic Table
Across
- 2. a particle with a positive charge
- 5. the building blocks of life
- 6. the law of conservation of mass states matter cannot be...
- 8. the vertical (up and down) sections on the periodic table
- 9. a particle with a negative charge
- 10. equal to the number of protons and neutrons
- 12. the basic units of elements and matter
Down
- 1. the number in front of a chemical formula
- 2. arranges elements into groups and periods
- 3. the horizontal (left to right) sections on the periodic table
- 4. particles with no charge
- 5. the amount of matter in something
- 7. represented on the periodic table by symbols
- 8. number 79 on the periodic table
- 11. the material made from the chemical equation NaCl