Across
- 2. up, down, top, bottom, charm and ...
- 4. European Organisation for Nuclear Research
- 6. sodium
- 8. longest in the EM spectrum
- 11. unit of charge
- 12. positively charged sub atomic particle
- 13. standard set of units
- 14. muons and neutrinos
- 15. atomic number of Pa
Down
- 1. unit of voltage
- 3. negatively charged sub atomic particle
- 5. element that makes up diamond
- 7. first spacecraft to orbit another planet
- 9. only allows current to flow in one direction
- 10. 4th planet from the sun
- 12. 10 to the power of minus 12