The Periodic Table
Across
- 2. Columns in a periodic table.
- 6. There are ... known elements on the periodic table.
- 8. Element with the chemical symbol of Na
- 9. The man who invented the periodic table
- 10. Rows in a periodic table.
- 12. There are ... non-metals in the first 20 elements of the periodic table
- 13. ... atoms has the highest mass
Down
- 1. The heaviest element
- 3. There are ... metals in the first 20 elements of the periodic table
- 4. The atoms of the elements increase in ... as you read across each row.
- 5. What do we call the table that shows all the elements?
- 7. One or Two letters that represent an element.
- 11. Number of protons an atom contains