Q. Which element is not considered as ‘chalcogens’?
A) Selenium
B) Oxygen
C) Sulphur
D) Polonium
Explanation
(d)
In group 16 and period VI the oxyge, sulphur, selenium are chalcogens (ore forming) while polonium being radioactive forms a less number of compounds and is not considered as chalcogens.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.