Can someone help me on this please

What is the number of atoms in 3.54 mol s

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

One does not belong why? ice, gold ,wood ,diamond and table salt