Across
- 2. The positively charged sub-atomic particle
- 4. A substance that will speed up a reaction without being used up itself
- 5. The type of ion formed by metal elements
- 8. Different versions of the same element with a differnet number of neutrons
- 11. A reaction where heat energy is given out
- 13. The other name for the Group 0 gases
- 14. The gain of electrons
Down
- 1. The element with the electron configuration, 2,8
- 3. Carried out the "Gold foil" experiment to disprove the Plum Pudding Model
- 6. The bond between a metal and a non metal
- 7. The negative electrode
- 9. A group 6 element with the atomic number of 6
- 10. Designed the Periodic Table
- 12. Calculated by Mr Moles