Across
- 2. A solid material with good heat and electricity conductivity.
- 4. A proton sans the electric charge.
- 5. The best element with the chemical symbol BI.
- 10. Particles of matter that make up protons and neutrons.
- 12. An element whose attributes fall between those of a metal and a non-metal.
- 13. The element named after a famous late scientist whose name is synonymous with "genius".
- 15. A halogen that really hates water.
- 16. The smallest piece of matter that retains the abilities of the element.
- 17. Salt former.
- 20. Number of protons in an atom.
Down
- 1. A particle found in all atoms with a negative electrical charge.
- 3. A stable particle in all atomic nuclei.
- 6. Sum of protons and neutrons in a nucleus.
- 7. The horizontal rows in the periodic table.
- 8. A necessary element to all living beings that we know of.
- 9. The core of an atom, built of protons and nuetrons.
- 11. Arrangement of all known elements.
- 14. Element that usually is a gas or brittle solid at room temperature.
- 18. The vertical columns in the periodic table.
- 19. A soft metal which you should invest in.