an element X belongs to 3rd period and 17th, state:
(i) number of the valence electrons in it.
(ii) name of the element.
(iii) name the family to which it belongs.
(iv)write the formula of the compound formed when X reacts with (upside 27), (downside 13) Y
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10
- 17th group so 7 valence electrons
- chlorine
- halogen
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15
Answer:the answer is given in the picture
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