11. Let Zdenote the atomic number and A enote the mass number of a nucleus. The

Question

11. Let Zdenote the atomic number and A enote the mass number of a nucleus. The number of neutrons in this nucleus is: A) Z B) A Z C) A-2Z DO A E) 24 12. A femto is: A) larger than 10 m B) 10-9 m C) 12 m D) 15 m E 10-18 m. 13. A nucleus with a mass number of 64 has a mean radius of about: A) 4.8 fm B) 19 fm C) 77 fm D) 260 fm E) 2.6 x 105 frm 14. The ing energy of a nucleus is the energy that must be supplied to: A) remove a nucleon B) remove an alpha particle C) remove a beta particle D) separate the nucleus into its constituent nucleons E) separate the nucleus into a collection of alpha particles 15. The greatest binding energy per nucleon occurs for nuclides with masses near that of A) helium B) sodium C) iron D) mercury E) uranium

Explanation / Answer

11)

Z = sum of number of protons & electrons

A = sum of protons and neutrons

number of neutrons = A-Z

option B

+++++++

12)

1 fm = 10^-15 m

option D

------------

13)

R = R0*A^(1/3)

R = 1.2*10^-15*64^(1/3)

R = 4.8 fm

option A)

-------

14)

option D

--------

option C

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.