Chemical Bonding

Crossword

Complete the crossword, then click on the "Check" button.
Click on a number in the grid to see the clue or clues for that number.
If you are stuck, you can click on "Hint" to get a free letter. You will lose marks every time you get a hint.
Best of luck!
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 11     12     13     14   
           
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 18            

Across:

1. The attraction between atoms (4)
2. This type of element doesn't get involved in covalent bonding (5)
5. This is formed when an atom gains or loses an electron (3)
7. Symbol of atom that forms a dipositive ion (2)
8. The rule which atoms tend to obey when forming bonds (5)
9. The number of electrons in a triple bond (3)
11. Symbol of metal whose valency is two (2)
12. Covalent compounds do not do this (7)
15. Chemical symbol of a very reactive metal that forms a positive ion (2)
16. Electrons are ...... in a covalent bond (6)
17. Symbol of an element whose valency is three (2)
18. This element does not form compounds (4)

Down:

1. This point is high for an ionic compound (7)
3. This particle is involved in bonding (8)
4. Ionic compounds are not usually found in this state (6)
6. The structure of a sodium chloride crystal (7)
10. A covalent compound with four single bonds (7)
13. The type of covalent bond in the oxygen molecule (6)
14. The type of covalent bond in the nitrogen molecule (6)