lec27_Supplemental - 12/7/11 1 Final Exam : Tuesday...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 12/7/11 1 Final Exam : Tuesday December 13, 2011 from 7:00 PM to 9:00 PM NOTE THAT FEW EQUATIONS WILL BE GIVEN YOU ARE REMINDED THAT IT IS YOUR RESPONSIBILITY TO CREATE WHATEVER TWO-SIDED CRIB SHEET YOU WANT TO BRING TO THIS EXAM. *Covers all readings, lectures, homework from Chapters 25, 27 through 30 *Location: Stewart 183 Be sure to bring your student ID card, calculator, pencil and three one-page (two- side) crib sheet. 12/7/11 2 Quiz: December 5, 2010 An electron in an atom of gold is in a state with n=4 . Which of these values of l are possible for it: -3, 0, 2, 3, 4, 5 (A) 3, 4, 5 (B) -3, 0, 2, 3, 4 (C) -3, 0, 2, 3 (D) 0, 2, 3 (E)All of them 12/7/11 3 Structure of the Nucleus 2 4 He A=mass number Z=atomic number element Nucleus = neutrons + protons Z = atomic number = number of protons N =number of neutrons A =atomic mass number (nucleon number) A= Z + N 12/7/11 4 Mass of Nucleons about 1800 times that of the electron 12/7/11 5 Mass & Energy Scales in Nuclear Physics E = mc 2 E p m p c 2 = 938 MeV m p = 938 MeV c 2 1 u = 1.66 x 10 ! 27 kg = 931.5 MeV c 2 atomic mass unit which is 1/12 of the mass of a carbon atom C12 6 mass of a proton 12/7/11 6 Isotopes 2 4 He 2 3 He 2 6 He 12/7/11 7 Size of the Nucleus 7 Li 1 femtometer = 10-15 m 50,000 times smaller than an atom Approximately spherical r = r o A 1 3 A = r r o ! " # $ % & 3 A is proportional to the volume of the sphere. As A increases, the radius of the nuclear sphere increases. 12/7/11 8 Size of the Nucleus A = r r o !...
View Full Document

This note was uploaded on 12/07/2011 for the course PHYS 221 taught by Professor Pyrak-nolte,laura during the Fall '08 term at Purdue University-West Lafayette.

Page1 / 13

lec27_Supplemental - 12/7/11 1 Final Exam : Tuesday...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online