leej0141

Group 22	Group Name : O-zoners
Group Members : STANLEY FOO GUO FENG, KOH HWEE KWAN REBECCA, KHAM WENHUI, LEE JING KANG BENEDICT, LEE WEI SONG, SEAH ZHI HAO JOSHUA
1. Carbon atoms can differ from each other in their number of neutrons (isotopes), or electrons/charge (ions). All carbon atoms differ from all uranium atoms in their number of protons, neutrons and electrons. This results in different chemical and physical properties as well.
2. Aside from the chemical symbol N representing Nitrogen, the number 14 and 15 represents the mass number of the two different Nitrogen atoms. This indicates that the two Nitrogen atoms have different number of neutrons. 14N has 7 neutrons while 15N has 8 neutrons.
3. a. 94 protons b. 93: Neptunium (Np) 94: Plutonium (Pu) c. 86 protons
4. A. control rod assembly B. cooling water out of the core C. control rods D. cooling water into the core E. fuel rods
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CM8001