Question

Using the periodic table as a reference, which pair of elements are nonmetals?

A. oxygen and sulfur

B. cobalt and zinc

C. mercury and lead

D. sodium and iodine

Answer 1

A). oxygen and sulphur

• Non metals are on the right side of the periodic table
• they are generally in the gaesous form
• there are as many as 20 non metals in the periodic group ( including halogens and noble gas).
• non metal are electron withdrawning groups and they generally forms anion
• they are poor conductors of heat and electricity