Group 40

Group 40 Group Name : Group 40
Group Members :
LIM LING YAN, NGO YUN XUAN SERENE, GOH JIA HUI CHIN SOK FANG, JONATHAN KENICHI WIRAHARA, THARAYIL SANTHOSHKUMAR ABHIRAMA
1.

Two ways that carbon can be different from another carbon is if one is C-12 and the other is C-14. C-12 is not radioactive and C-14 is radioactive.

Uranium atom is U-235 while carbon is C-12, there is a difference in atomic and mass number. There is also a difference in half-life of uranium and that of carbon. Carbon decays into nitrogen while Uranium decays into lead in a 11-step process.
2.

14N means that the nitrogen atom has a total of 14 protons and neutrons while 15N means that the nitrogen atom has a total of 15 protons and neutrons.

Comparing between 14N and 15N, they are isotopes which means they have the same number of protons but different number of neutrons.
3.

a. 94
b. Plutonium and Naptunium
c. 86
4.

(A) Control rod assembly
(B) Cooling water out the core
(C) Control rods
(D) Cooling water into the core
(E) Fuel rods
5.
[276]
6.
[278]
7.
[280]
8.
[282]
9.
[284]
10.
[286]