Across
- 4. chemical symbol of the only liquid metal at room temperature
- 6. You need this metal for strong bones
- 7. Protons and neutrons have a mass of
- 9. What diamonds are made from
- 10. Rows in the periodic table
- 15. Not all treasure is ______ and gold.
- 16. Country Dimitri was from
- 18. Second lightest element
- 19. Electrons are found in these in atoms
- 22. Element with chemical symbol Ir
- 23. The number of electrons and protons in an atom are
- 24. Father of the periodic table
- 27. Negatively charged particle
- 29. Neutrons have a charge of
- 30. Neutral subatomic particle
Down
- 1. The only element with a Z in
- 2. The basic building block. Elements are made of these.
- 3. Gas we exhale
- 5. Pirate's favourite metal
- 8. Columns in the periodic table
- 11. Gas we inhale to respire
- 12. A very reactive yellow gas
- 13. The only liquid non-metal at room temperature
- 14. Metal that melts just above room temperature
- 17. The centre of the atom is called this
- 20. Lightest element
- 21. John Newlands discovered this law
- 24. The element with the electron configuration 2,8,8,2
- 25. Positively charged particle
- 26. There are 118 different ones of these in the periodic table
- 28. Common chemical that covers 60% of the Earth's surface