Question

Q31. An element is placed in the second group and third period of the periodic table and
in presence of Oxygen forms a basic oxide.
(i) Identify the element and write its electronic configuration.
(1) Write a balanced chemical equation when it burns in the presence of air.
(in) Draw the electron dot structure for the formation of this oxide.​

Answer 1

Answer:

(i) Atomic number of an element is 17. Identify the element, write its electronic configuration & mention its valency.