CM8001

Q1. Name two ways in which one carbon atom can differ from another. Then name three ways in which all carbon atoms differ from all uranium atoms..

Q2. The representations 14N or 15N give more information than simply the chemical symbol N. Please explain.

Q3.
a. How many protons are in the nucleus of this isotope of *(239/94)plutonium: ?
b. The nuclei of all atoms of uranium contain 92 protons. Which elements have nuclei with 93 and 94 protons, respectively?
c. How many protons do the nuclei of radon-222 contain?

Q4. This schematic diagram represents the reactor core of a nuclear power plant.

Match each letter in the figure with one of these terms:
- fuel rods
- cooling water into the core
- cooling water out of the core
- control rod assembly
- control rods