An element X (atomic number 17) reacts with an element Y (atomic number 20) to form a divalent halide
(a) Where in the periodic table are elements X and Y placed?
Ans. X is in Group 17, period 3 and Y is in group 2, period 4
(b) Classify X and Y as metal (s), non-metal (s) or metalloid (s)
Ans. X is a non-metal, While Y is a metal.
(c) What will be the nature of oxide of element Y? Identify the nature of bonding in the
compound formed
Ans. Oxide of element Y would be basic. This compound is formed by ionic bond.
(d) Draw the electron dot structure of the divalent halide
Ans.
