Across
- 2. what is the atomic number
- 4. whats a neutron
- 6. actinides are
- 8. what does the periodic table hold
- 13. copper is a
- 15. the energy level of a periodic table
- 16. electron being excited form the ground
- 18. the substance on which an enzyme acts
- 19. the centre where protons and neutrons are hold
- 20. is mercurey solid or liquid
- 21. who made the periodic table
- 23. water vapour that falls under ground
- 24. something that is used to keep cold or heat away
- 27. a something of electricity
- 29. an element whose properties are intermediate between those of metals and solid nonmetals
- 31. the charge of a lightbulb
- 34. transfer of energy
- 35. gives off heat
- 37. helium is a
- 38. a mix of elements
Down
- 1. when a solid is turned into a liquid
- 3. dispositive and disnegitive
- 5. type of metal in the 1st column
- 7. the third nobel gas
- 9. animals that use heat to see
- 10. a mixture of compounds
- 11. a common gas used in ballons
- 12. whats a proton
- 14. copper is a
- 17. number of valence electrons
- 18. the state or process that occurs when no more of something can be absorbed, combined with, or added
- 22. when heat meets water gas if formed what is it called
- 25. whats an electron
- 26. what is the other number on the element
- 28. gives off a negative output
- 30. whats a solid liquid and gas called
- 32. something you drink daily
- 33. what do electrons have
- 36. symbol of carbon trioxide