Program Overview. All 50 states, the District of Columbia, Puerto Rico, and the Virgin Islands are members of the Interstate Compact. The Interstate Compact for Adult Offender Supervision is administered in Texas through the TDCJ Interstate Compact Office.rogram Overview. All 50 states, the District of Columbia, Puerto Rico, and the Virgin Islands are members of the Interstate Compact. The Interstate Compact for Adult Offender Supervision is administered in Texas through the TDCJ Interstate Compact Office.
Estimating the size of a molecule using oil. It would be wonderful if you could measure the size of a single atom, but atoms are so small that it cannot be done directly. Yet you can find the size of a molecule in a roundabout way and from that calculate the size of an atom. Lord Rayleigh (English physicist, 1842 to 1919.
The Size of Atoms. The size of atoms can be estimated with the use of Avogadro's number along with the atomic mass and bulk density of a solid material. From these, the volume per atom can be determined. The cube root of the volume is an estimate of the diameter of the atom. For carbon, the molar mass is exactly 12, and the density is about 2 gm/cm^3. The estimated volume is then. and the estimate of the carbon atomic diameter is the cube root of that. This estimate is a bit small. It can be refined somewhat by considering the atoms to be spheres and packing them in different ways.