23-12-2020
Chemistry

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two elements X and Y have atomic no. 12 and 17 respectively. write the formula of the compound formed by their combination

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23-12-2020

Answer:

x is calcium and y is chlorine

these are the p block elements

calcium belongs 4 th period and chlorine belongs to period 3rd

they forms ionic bond

chemical formula is

Ca+2 Cl-

CaCl2

Explanation:

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