Question

Question 1 (1 Point) This assignment is set up for sequential assessment. Complete each question and submit the answer before moving on to the next question. Correct answers for each question will be made available once the maximum number of attempts have been made for each submission. Nuclear Physics - Nuclear Structure Nuclear Structure Z O Proton r=ro41/3 radius N Neutron A = Z+N A ro - 1.2 x 10-15 m X Z The radius r of a nucleus is given in the above figure. The volume of a nucleus is V = = far? 56Fe nucleus has a total of 56 nucleons (protons + neutrons). The average mass of a nucleon is u = 1.66x10^-27 kg mass Density = Volume (a)Calculate the radius of a 56Fe nucleus. Write the radius in fm, 1fm = 10-15 m. Keep 2 decimal places. Enter a number x10-19m, fm Submit (5 attempts remaining) (b) Calculate the Denisity of a 56Fe nucleus.. Write the result in terms of 1017 kg/m3. Keep 2 decimal places. Enter a number x107kg/m3 Submit (5 attempts remaining) (c) An unknown nucleus has twice the volume of 56 Fe. What is the mass number A of this nucleus? Enter a number Submit (5 attempts remaining) If this unknown nucleus has 62 neutrons, how many protons does it have? Enter a number Submit (5 attempts remaining)

I can answer the multiple choice, I just need help with the fill ins.

Answer 1

56 Ansi) @ r=rA ore for fe A=56 143 Boro ATF So As lo 2x ) ou re 28 1/ x1.56) از شود Nire -14.59 x 10 m Answer

6 density = mie VF d 5 6 u Fe 3 56 u 봉자 올지 A d=5681.6 68 1027 4 x 22 x (1·2x10-15 13 x56 Stop 2 d=22.92x 10 x 10 27 x 10 3

d. 19.29x107 kg/m3. Answer As we know, that the de density of nucleus is constant for of every nucleus therefore, dx = d pe = mx mpe Voc Vie D Hence is volume doubles, than moss also doubles to keep density constant Mars number of unknown nacleus is. A = 2x 56=112. Answer A=I+N =) = no of prodons=A-N z - 112 - 62 la 250 Aug