Question

An element x (atomic number 17) reacts with an ekement y (atomic number 20) to form a divalent halide. (1) what is the position of element x and y in the periodic table? (2) what will be the nature of oxide of element y? Identify the nature of bonding in the compound formed.

Answer 1

1) The position of element X is in 17 group 3rd period and element Y has position in 2nd group 4th period................................................
2) The nature of oxide which is formed is ionic bond and the oxide formed is Calcium chlroride_________________
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