chemistry vocabulary
Across
- 3. number of protons and neutrons in the atom
- 4. tells us the number of protons in the atom
- 5. horizontal rows on the Periodic Table
- 6. describes a material that is bendable
- 8. atoms of the same element with different neutrons
- 10. an element used in electrical circuits
- 13. electrons in the outermost shell
- 14. category of atoms with the same atomicnumber
Down
- 1. identifies which element the atom is
- 2. contains protons and neutrons and electrons
- 3. the mass of the atom
- 7. smallest unit of matter
- 9. vertical columns on the Periodic Table
- 11. area around where electrons orbits
- 12. anything that has mass and takes up space