Question

Question 20 5 pts A K-56 atom (potassium-56) has a nucleus with 19 protons and an atomic mass of 56.0085186 u. What is the nuclear binding energy per nucleon in this atom? O 429 MeV O 22.6 MeV O 0.461 MeV O 7.66 MeV $1.6 Mev

Answer 1

neurrons So, the Ion k-56 tuére is 19 protons oo, no. of (56-19) 37 muass defect "mp x 19 + 370 mo -5600851864 22 my = 1.0078 25 u Mon - 1.008 665 u mass defect office 1.007825*19+|+008665837 56.00851864 u 37 ) J 0.4607614 u Now, 1 u = 931.5 hev/c? Binding energy Per nucleon. 931.6 0:4607614 Mev 5 6 27.66 Mev