The atomic radius of phosphorus is greater than the atomic radius of another element with different properties. Which of the following statements about the location of this other element on the periodic table can be true? A. the metal is below phosphorus in the same column. b. the metal is above phosphorus in the same column. c. the metal is to the left of phosphorus in the same row. d. the metal is to the right of phosphorus in the same row.

The answer is C. "The metal to the left of phospherus in the same row"

Explanation:

It says that phospherus has a higher atomic radius than the other unkown element. But it has different characteristics compared to phospherus. So that means that it would not be able to be in the same row because elements in the same row share the same charectoristics. And since we want its atomic radius to be lower than phospherus, it would have to be to the  left of it because reading left to right all atomic numbers, mass, and radius gets higher

Please let me know if my reasoning was correct!! :)

they are made of gases.

they have a spherical shape.

they make energy through fusion.

14 days is the half-life of phosphorus-32