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An element has atomic number of 17 state the elements group and period number​
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An element has atomic number of 17 state the elements group and period number​

User HuckleberryFinn
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Answer:

The element is in group 7, the halogens. The element is in the third period or row of the table.

Step-by-step explanation:

Chlorine is element number 17.

User Anfab
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