Question

An element X (atomic number 17) reacts with an element Y (atomic number 20) to form a divalent halide.
(i) Where in the Periodic Table are elements X and Y placed?
(ii) Classify X and Y as metal(s), non-metal(s) or metalloid(s).
(iii) What will be the nature of oxide of element Y? Identify the nature of bonding in the compound formed.
(iv) Draw the electron dot structure of the divalent halide.

Answer 1

(i) X belongs to Group 17 and 3rd period Y belongs to Group 2 and 4th period
(ii) X—Non-metal and Y—Metal
(iii) Element Y is a Basic oxide and the nature of bonding is the Ionic bondin