21. The total binding energy of O-16 is 127.6 MeV. Therefore, its binding energy per nucleon (in MeV) is * A 127.6 x6 B. 127.6/8 C. 127.6/16 D. 127.6/100
choose the correct answer.
21. The total binding energy of O-16 is 127.6 MeV. Therefore, its binding energy per nucleon (in MeV) is *
A 127.6 x6
B. 127.6/8
C. 127.6/16
D. 127.6/100
22. Which of the following processes would increase the M/p ratio of the nucleus? *
A. beta emission
B. positron emission
C. n emission
D. gamma emission
23. The relative amounts of the four iron isotopes in a natural sample of iron are Fe-56(40%), Fe-54 (30%), Fe-57 (20%), and Fe-58 (10%). Therefore, the atomic weight of the natural iron is *
A. 57
B. 55
C. 55.8
D. 58.5
24. The unit of radioactivity disintegration/sec is *
A. 1 Curie
B. 1 microcurie
C. 1 becquerel
D. 1 megabecquerel
25. In the radioactive decay 20^45 Ca -- 21^45Sc, the n/p ratio *
A. decreases
B. increases
C. remains unchanged
D. has no significance
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
