Question

which list of elements contains only metals?
a. iodine, copper, argon
b. helium, iron, copper
c. carbon, iodine, tin
d. tin, copper, cesium

Explanation:

Iodine is a non - metal, argon is a noble gas, helium is a noble gas, carbon is a non - metal. Tin, copper and cesium are metals.

Answer:

D. Tin, copper, cesium