Show your work. (17 pts.) Write a balanced nucl ear equation for each process de

Question

Show your work. (17 pts.) Write a balanced nucl ear equation for each process described: ?.japts.) 2.Po underpoesdecaybyalphaemission(roact) b. (3 pts.) 2SSPb undergoes decay byelectroncapture(veact an c. (3 pts.) llNa undergoesdecay by positron emission ( Podu c {) 8-1 20S 20 S e d. (2 pts.) Just before a massive star goes supernova and becomes a black hole, it begins to burn carbon. C is created by the fusion of 3He nuclei. Write a balanced nuclear equation for the process of creating 2C by this fusion process. e.)(6 pts.) Complete the following nuclear equation have? ii. How many neutrons and electrons does the isotope meg neutrons electrons

Explanation / Answer

Part a

84Po208 undergoes decay by alpha emission

84Po208 = 2He4 + 82Pb204

Part b and part C are correct

Part d

7N15 + 1H1 ? 6C12 + 2He4

Part e

On balance the atomic number and atomic mass of reactants and products

Sum of atomic mass of reactants = Sum of atomic mass of products

209 + 64 = 272 + X

X = 1

Sum of atomic number of reactants = Sum of atomic number of products

83 + 28 = 111 + Y

Y = 0

a neutron is emitted

83Bi209 + 28Ni64 = 111Rg272 + 0n1

Neutrons in 111Rg272 +2 = 272 - 111 = 161

Electrons in 111Rg272 +2 = 111 - 2 = 109

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