am element X with atomic no. 17 reacts with an element Y atomic no. 20 to form a compound write position of these elements in modern periodic table and write the formula of the compound formed
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cacl2 is the compound formed
chlorine is the first element and group no 17 and 3rd periodcalcium is the second element group no 2 and 4th period
fidydydy:
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Easy boy
Valency
X: 2,8,8,2
Y:2,8,7
The rest of the and is given in the attached file down
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