CM8001

Carbon atoms differ in terms of:
1. The number of neutrons (For example, C-12, C-13)
2. The number of electrons (The atoms would form ions)

While all carbon atoms differ from all uranium atoms in terms of:
1. The number of protons (Uranium has 92 protons while Carbon has 6 protons)
2. The number of neutrons
3. The number of electrons
2. Chemical properties (For example, electronegativity)

Symbol N represents nitrogen and stands for the naturally occurring mixture of all isotopes.
Symbol 14N and 15N represent specific isotopes with mass number of 14 and 15 respectively.

a. There are 94 protons in the isotope.

b. Neptunium has 93 protons and Plutonium has 94 protons.

c. Radon-222 has 86 protons. Isotopes only differ in mass number but not proton number.

A: Control rods
B: Cooling water out of the core
C: Control rod assembly
D: Cooling water into the core
E: Fuel rods