Across
- 3. Group one metals are also called the _____ metals.
- 9. Non-metals gain electrons to form _____ ions.
- 11. Horizontal rows in the Periodic Table.
- 12. Vertical columns in the Periodic Table.
- 13. Elements in the same group all have similar chemical _______.
- 15. The group number tells you how many ______ are in the outer shell.
- 16. This halogen is a green gas.
Down
- 1. Mendeleev sorted his periodic table by Atomic ____.
- 2. Group 7 are also called the ______.
- 4. The melting point of group 1 metals _____ as you go down the group.
- 5. This halogen is a red liquid.
- 6. Mendeleev left ____ in his periodic table, for undiscovered elements.
- 7. Alkali metals react violently with ____, often with a coloured flame.
- 8. Non-metals are found on the ____ side of the Periodic Table.
- 10. Metals can conduct ______.
- 14. These form positive ions.