Please help need this before 4:15pm In which part of the periodic table (top-left, top-middle, top-right, bottom-left, bottom-middle, bottom-right, middle-left, middle-center, middle-right) do we find most of the atoms that make up life?

Points j and k plotted on the coordinate grid are two vertices of rectangle jklm rectangle jklm has an area of 7 square units point j is located at 2,1 and point k is located at -5,1 each vertex of the rectangle is located at a point that has integer coordinates. what is the perimeter of rectangle jklm? (need answer asap)