L44S07Berkeley and the Periodic Table 05-07-07

L44S07Berkeley and the Periodic Table 05-07-07 - Berkeley...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Berkeley and the Actinides ©H. Nitsche, M.Kubinec UCB 1 ©Nitsche,Kubinec UCB Berkeley & Periodic Table 1 Gl Gl enn T. Seaborg enn T. Seaborg (1912 – 1999) 1999) ©Nitsche,Kubinec UCB Berkeley & Periodic Table 2 Periodic Table of the Elements 2007 1 1 H 3 Li 4 2 Be 11 12 Na Mg 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr He 5 B 6 C 7 N 8 O 9 F 10 Ne 13 Al 14 Si 15 P 16 S 17 Cl 18 Ar Rb 38 Sr 39 Y 40 Zr 41 Nb 42 Mo 43 Tc 44 Ru 45 Rh 46 Pd 47 Ag 48 Cd 49 In 50 Sn 51 Sb 52 Te 53 I 54 Xe 55 Cs 56 Ba 57 La 58 72 Hf 73 74 WR eO s 77 Ir 78 Pt 79 Au 80 Hg 81 Tl 82 Pb 83 Bi 84 Po 85 At 86 Rn 87 Fr 88 Ra 89 Ac 104 Rf 105 107 108 109 Bh Hs Mt Ce 59 Pr 60 Nd 61 Pm 62 Sm 63 Eu 64 Gd 65 Tb 66 Dy 67 Ho 68 Er 69 Tm 70 Yb 71 Lu 90 Th 91 Pa 92 U 93 Np 95 Am 96 Cm 97 Bk 98 Cf 99 Es 100 Fm 101 Md 102 No 103 Lr Lanthanides Actinides 106 Ta 76 94 Pu Sg 75 2 34 6 5 7891 0 1 2 13 14 15 16 17 18 11 Rg 115 118 111 110 112 114 116 Db Db Ds 113
Background image of page 1

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

View Full DocumentRight Arrow Icon
Berkeley and the Actinides ©H. Nitsche, M.Kubinec UCB 2 ©Nitsche,Kubinec UCB Berkeley & Periodic Table 3 ©Nitsche,Kubinec UCB Berkeley & Periodic Table 4 Ernest Orlando Lawrence (1901 - 1958) Professor of Physics at the University of California, Berkeley. Director of the University’s Radiation Laboratory in 1936. Invented the Cyclotron in 1929 which gave birth to a new science Collaborated with his brother, Dr. John Lawrence, Director of the University’s Medical Physics Laboratory, to study medical and biological applications of the cyclotron Awarded Nobel Price in Physics in 1939
Background image of page 2
Berkeley and the Actinides ©H. Nitsche, M.Kubinec UCB 3 ©Nitsche,Kubinec UCB Berkeley & Periodic Table 5 Constructed by Ernest O. Lawrence and M. Stanley Livingston in 1930, this cyclotron is one of the first of such working machines. It was able to accelerate protons to an energy of 80,000 eV. The results reported at the American Physical Society meeting January 1931, earned Livingston a Ph.D. and Lawrence $500 from the National Research Council toward a machine “that might be useful for nuclear physics”. Birth of the Cyclotron ©Nitsche,Kubinec UCB Berkeley & Periodic Table 6
Background image of page 3

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

View Full DocumentRight Arrow Icon
Berkeley and the Actinides ©H. Nitsche, M.Kubinec UCB 4 ©Nitsche,Kubinec UCB Berkeley & Periodic Table 7 PROJECTILES FOR PROJECTILES FOR BOMBARDMENTS BOMBARDMENTS Before 1956: Before 1956: H 1 1 n 1 0 D 2 1 He He 4 2 C 12 6 N 15 15 7 O 18 8 After 1956: After 1956: and many heavier projectiles and many heavier projectiles up to up to 238 238 U ©Nitsche,Kubinec UCB Berkeley & Periodic Table 8 The Dicoverers of Nuclear Fission: Otto Hahn, Lise Meitner, and Fritz Straßmann
Background image of page 4
Berkeley and the Actinides ©H. Nitsche, M.Kubinec UCB 5 ©Nitsche,Kubinec UCB Berkeley & Periodic Table 9 Hahn and Hahn and Strassmann December 1938 December 1938 56 56 Ba + Ba + 36 36 Kr Kr 92 92 U + n U + n F. P.
Background image of page 5

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

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 21

L44S07Berkeley and the Periodic Table 05-07-07 - Berkeley...

This preview shows document pages 1 - 6. Sign up to view the full document.

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