Based on their locations on the periodic table, which best compares the properties of the metalloids arsenic (as) and antimony (sb)? arsenic has a more metallic behavior than antimony because arsenic’s atoms have fewer electron shells. arsenic has a more metallic behavior than antimony because arsenic’s atoms have more electron shells. arsenic has a more nonmetallic behavior than antimony because arsenic’s atoms have more electron shells. arsenic has a more nonmetallic behavior than antimony because arsenic’s atoms have fewer electron shells.

In order to compare the two elements, one must take note of its placement in the periodic table. As you go down a group in the periodic table, the metallic property increases. Thus in the problem, Antimony has a more metallic behavior than Arsenic so that already crosses out statement A and B from the choices since it is untrue. The number of electron shells meanwhile decreases as you go down the group. Therefore the answer would be Arsenic has a more nonmetallic behavior than antimony because arsenic’s atoms have fewer electron shells.  

the answer is barium and copper bromide