Quantum Physics

Some Useful Tables A.15TABLE C.3The Greek AlphabetAlpha Nu Beta Xi Gamma Omicron Delta Pi Epsilon Rho Zeta Sigma Eta Tau Theta Upsilon Iota Phi Kappa Chi Lambda Psi Mu Omega TABLE C.4Physical Data Often Used aAverage Earth-Moon distance 3.84 10 8 mAverage Earth-Sun distance1.496 10 11 mEquatorial radius of Earth6.38 10 6 mDensity of air (20°C and 1 atm) 1.20 kg/m 3Density of water (20°C and 1 atm) 1.00 10 3 kg/m 3Free-fall acceleration 9.80 m/s 2Mass of Earth5.98 10 24 kgMass of Moon7.36 10 22 kgMass of Sun1.99 10 30 kgStandard atmospheric pressure 1.013 10 5 Paa These are the values of the constants as used in the text.TABLE C.5Some Fundamental Constants aQuantity Symbol Value bAtomic mass unit u 1.660 540 2(10) 10 27 kg931.494 32(28) MeV/c 2Avogadro’s number N A 6.022 136 7(36) 10 23 (mol) 1Bohr radiusa 0.529 177 249(24) 10 10 0 mm e e 2 k eBoltzmann’s constant k B R/N A 1.380 658(12) 10 23 J/KCompton wavelengthm e c2.426 310 58(22) 10 12 mCoulomb constantk e 1408.987 551 787 10 9 N m 2 /C 2 (exact)Electron mass m e 9.109 389 7(54) 10 31 kg5.485 799 03(13) 10 4 u0.510 999 06(15) MeV/c 2Electron volt eV 1.602 177 33(49) 10 19 JElementary charge e 1.602 177 33(49) 10 19 CGas constant R 8.314 510(70) J/K molGravitational constant G 6.672 59(85) 10 11 N m 2 /kg 2Hydrogen ionization energy C h2E 1 m ee 4 k2 e2 2 e 2 k e2a 013.605 698(40) eVNeutron mass m n 1.674 928 6(10) 10 27 kg1.008 664 904(14) u939.565 63(28) MeV/c 2Permeability of free space 0 4 10 7 T m/A (exact)Permittivity of free space 0 1/ 0 c 2 8.854 187 817 10 12 C 2 /N m 2 (exact)Planck’s constant h 6.626 075(40) 10 34 J sh/21.054 572 66(63) 10 34 J sProton mass m p 1.672 623(10) 10 27 kg1.007 276 470(12) u938.272 3(28) MeV/c 2Rydberg constant R H 1.097 373 153 4(13) 10 7 m 1Speed of light in vacuum c 2.997 924 58 10 8 m/s (exact)a These constants are the values recommended in 1986 by CODATA, based on a least-squares adjustment of data from differentmeasurements. For a more complete list, see Cohen, E. Richard, and Barry N. Taylor, Rev. Mod. Phys. 59:1121, 1987.b The numbers in parentheses for the values below represent the uncertainties in the last two digits.