chemical bonds

1 2

3

4

5 6

7

8

9

10

Across

3. a group of highly reactive elements

5. vertical number on top the periodic table

7. number of shells an element has

8. family group that are colorless,tasteless,odorless

9. an elementary particle with 0 charge

10. a group of five chemicaly related nonmetalic elements

Down

1. number that an element has in its outer shell

2. a negatively charged component

4. two elements chemically combined

6. a positively charge component

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