Across
- 2. A simple unit of an element
- 6. An oxygen and hydrogen atom that's bonde together and found in most bases
- 7. It describes the molecule or substance; eg carbon dioxide
- 8. A column in the periodic table
- 10. You can see all the elements here
- 11. A row across in the periodic table
- 14. A group of atoms that are bonded together; they can be the same or different atoms
- 16. It is an element in group one in the periodic table
Down
- 1. It uses symbols to show how many atoms are in a molecule or compound
- 2. Group 1 elements that dissolve in water
- 3. The chemical name for table salt
- 4. This gas is the product of photosynthesis and is needed for respiration
- 5. This is a noble gas in the last group and makes balloons float
- 9. To join atoms together
- 12. A short way of writing something
- 13. A pure substance with only one type of atom
- 15. A substance with two or more different atoms bonded together