Across
- 2. The basic unit of a chemical element
- 4. bond A transferred electron between a metal and non-metal ion
- 8. Positively charged sub-atomic particle found in the nucleus of an atom
- 10. Neutrally charged sub-atomic particle found in the nucleus of an atom
- 11. metals Elements found in group 1 on the periodic table
- 13. bond A shared pair of electrons between 2 non-metal atoms
- 14. Negatively charged sub-atomic particle found orbiting an atom
Down
- 1. Elements found in group 7 on the periodic table
- 3. A molecule containing a very large number of atoms
- 5. shells An electrons orbit around the nucleus of an atom
- 6. Large macromolecule made up of carbon atoms covalently bonded together
- 7. number The number of protons/electrons in the nucleus of an atom
- 9. number The total number of protons and neutrons in a nucleus.
- 12. gases Elements found in group 8 on the periodic table