A) Describe the main parts of a nuclear reactor B) what kind of reactions generally occur. C) What happens if the reaction is too slow, D) what happens if it is too fast, E) what can prevent this?

Question 1: The table shows two isotopes of potassium and two isotopes of calcium. 39K 39 Ca Stable ß* decay 38.96371 38.9707 Type of emission Mass of neutral atom / u Number of electrons Number of protons Number of neutrons Total mass/u Mass defect / u Binding energy / J 42K ß decay 41.9624 Mass of the neutron = 1.008665 u 19 19 ta min 23 42.34797 0.38557 5.76 x 10-11 2 051 oqque 42 Ca stable 41.95863 Mass of the electron = 0.000549 u Mass of the proton = 1.007276 url millons voled pringle bre noljenimaxe al prderobny v nollenimexe erit lo anpitibnco art di ballamos svar en talean blow tert elshatem vos maxe erii otni triquonion aver a) Use data about potassium-42 to explain the concept of mass defect. oo will teanu snimaxe edt sot jaqeq maxe eft overmat ym of 820308 ever b) Complete the table and to calculate the mass defect and binding energy of 39K. Show your calculations in the space below.

What becomes of the loss in mass when heavy nuclei split? b) What formula can be used to account for this loss?

Suppose that a nucleus captures two neutrons and decays to produce one neutron. Is this process likely to produce a chain reaction? Explain your response (make sure to proofread and properly give credit to any sources used)