Across
- 4. made up of one type of atom
- 6. column in the periodic table
- 7. a positive charge
- 8. a negative charge
- 10. of an atom
- 12. electrons/atoms of elements in the same group have the same number of electrons in their outer shell
- 14. number/ Number of protons plus the neutrons
- 15. bonds/ Different types of atoms joined together
Down
- 1. A substance measured in grams per centimeter cubed
- 2. Gases/ Group 0 elements
- 3. row in the Periodic Table
- 5. name to protons and neutrons
- 9. with the same number of protons but different numbers of neutron
- 11. configuration/ Arrangement of the electrons in shells
- 13. Contains two or more elements that are NOT chemically bonded