Across
- 4. an English people who constructed the atomic theory
- 6. Name of Groups Element of three according to their weights and properties
- 9. What is piece of equipment did Dalton use in his work on atomic weights?
- 10. unusual element cz it does have a neutron and just one proton
- 13. Na is the symbol of element ...
- 14. a scientist that focus only in Chemistry
- 15. Water are consist of hydrogen and ...
Down
- 1. a Russion scientist who arranged the whole of the modern periodic table
- 2. The rows of Periodic table are called ...
- 3. Many of the columns of elements in the periodic table
- 5. a place to work some observation and experiment
- 7. Another name for nitrogen
- 8. ... and argon were the element that discovered after New lands had completed his work.
- 11. the part of atom that can move
- 12. Element number 74