Question

the element X and Y have atomic number 11 and 17 respectively element X reacts with element Y to form compound with molecular formula

Answer 1

the element 11 is sodium and the element 17 is chlorine they react to form compound called sodium chloride (NaCl)

Answer 2

X:-Sodium

Y:-Chlorine

X + Y --------> XY

Sodium + Chlorine -----> Sodium

chloride

Na + Cl2 -------> NaCl.

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