Fu Chun Yu Lab Notebooks

Sept. 14, '49

Weight of 30 cc. beaker = 22.065 gms Weight of beaker plus Hg = 36.960 [gms] Weight of Hg = 14.915 gms to be dissolved in 4cc. conc. HNO₃ in 10 cc. H₂O Weight of Hg undissolved = 8.305 mgs Hg dissolved = 14.915 - 8.305 = 6.610 gms.

FAILED! HgCl₂ precipitated by MnCl₂

Weight of 30 cc. beaker = 21.015 gms [Weight] of beaker + Hg = 29.330 [gms] [Weight] of Hg = 8.315 gms to be dissolved in 4 c.c. conc. HNO₃ + 10 c.c. H₂O

Samples of Hg(NO₃)₂ was prepared. ~ 7.0 gms of Hg contained in a soln of 9 c.c. volume with 7.75 gms of Fe (NO₃)₃ ⋅ 9 H₂O (404 = M.W.) Made two samples

Hg #2 Hg ~ 3.88 x 5/6 = 3.24 M Fe ~ 2.13 x 5/6 = 1.78 M

26.78 22.07 _______ 4.71 ~ Hg

32.21 22.07 __________ 10.14

25.425 22.070 ___________ 355

32.210 25.425 ___________ 7.785

Hg#3 [4.71 gms in bec of Hd] in sec of solu Hg (NO3)2

Cd.111 Molarity = 1.5/10x0.1445 = 1.04 M Molarity pf MnSO4 = 0.36/10x0.169 = 0.213 M Cd113 Molarity = 0.558/5x0.1445 = 0.772 M

20Ca 1s2 2s2 2p6 3s2 3p6 4s2 1s2 Zeff=20-0.35=19.65 20-1.70-7x0.35= 2s22p6 20-4.15=15.85 3s23p9 20-11.25=8.75 4s2 20-17.15=2.85 Sum of Zeff of diff shells =19.65+15.85+4/9X8.75+2.85/16 =39.57 Diamagntic conectim factor=2/3(1/137)2[?]Zeff =3.552x10-5[?]Zeff =1040x10-3 0.259 Haitrss value 1041x10-3 Thomas Ferris value 1073x10-3 Total Zff Z for [?K]=37.08

26Fe 1s2 2s2 3s2 3p6 3d6 4s2 1s2 2eff=26-0.35=25.65 2s22p6 26-4.15=21.85 3s23p6 26-11.25=14.75 3d6 26-18x1.00-5x0.35=6.35 4s2 26-10x1.00-14x0.85-0.35=26-22.25=3.75 Sum of Zeff=25.65+21.85+4/9x14.75+3/9x6.35+1/16x3.85 =56.19 amegnetic curectim=3.552x10-5x56.19=2.00x10-3 haitree value=2.02x10-3 thomas ferris value=2.46x10-3 0.259

29Cu 1s2 2s2 2p6 3s2 3p6 3d10 4s 1s2 Zeff = 28-0.35=28.65 2s2 2p6 29-4.15=24.85 3s2 3p6 29-11.25=17.75 3d10 29-18x1.00-9x0.35=7.85 4s 29-21.9=7.10 Sum of Zeff=28.65+24.85+4/9x17.75+5/9x7.85+7.20/32 =65.97 Dia Conectim=3.552x10-5x75.97=2.34x10-3 37Rb 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s 1s2 zeff=37-0.35=36.65 2s2 2p6 37-4.15=32.85 3s2 3p6 37-11.25=25.75 3d10 37-21.15=15.85 4s2 4p6 37-22.15=14.85 5s 37-10x1.00-14x0.85 -7x0.35=12.65 37-28x1.00-8x0.85=2.2 sum of Zeff=36.65+32.85+4/9x25.75+5/9x15.85+1/4x12.65+2.2/50=92.95 Dia curtivm=3.552x10-5x92.95=3.30x10-3

55cs 1s2 2s2 2p6 3s2 3p6 4d10 4s2 4p6 4d10 5s2 5p6 6s 1s2 Zeff=55-0.35=54.65 2s22p6 55-4.15=50.85 3s23p6 55-11.25=50.85 3d10 55-21.15=33.85 4s2sp6 55-24.35=30.65 4d10 55-36x1.00-9x0.35=55-39.15=15.85 5s25p6 55-28x1.00-18x0.85-7x0.35=55-45.75=9.25 6s 55-46x1.00-8x0.85=55-52.8=3.2 Sum of Zeff=54.65+50.85+4/9x43.75+5/9x33.85+1/4x30.65 +5/16x15.85+4/25x9.25+1/72x3.2 =157.87 Dia curtium=3.552x10-5x157.4=5.60x10-3

Sept 23 49 Measurements on HS199 Nuclevs D2 (Sample#22) (5825->5800Kc) Time Dist Markers Res Dist Marker no Res freg [?] [?] 14 min 7210 3708 1 5812.0kc 53min 71.9 38.6 1 5811.7 0.2 0.04 87 72.8 38.6 1 5811.8 0.1 0.01 125 72.0 37.6 1 5812.0 0.1 0.01 Av=5811.9kc [?]=0.023 Nuclevs Hg199(Sample Hg#4) (6775-6750kc) Time Dist Marker Res Dist Marker no. Res freg [?] [?] 31min 6306 15.4 1 6769.0kc 0 0 66 6209 15.2 1 6769.1 0.1 0.01 103 6308 16.0 1 6768.8 0.2 0.04 138 6301 14.6 1 6769.3 0.3 0.09 Av=6769.0kc [?]=0.046 vd2=5811.9+-0.15=5811.9(1+-206x10-5) vhg199=6769.0+-0.21=(1+-301x10-5) VHS199/VD2=1.1646794(1+-5.7x10-5)=1.164068(1+-6x10-5)

vHg199/vD2 = 1.16468 +- 0.00007 = 1.16468 +- 0.0001 uHg199 = (1.16468 +- 0.0001) (0.428235) ~ 0.499 uN Dropper 26.3 drops = 1 c.c.

ueff soln salts Co [illegible] 4.6-5.0 4.4-5.2 Mn [illegible] 5.3-5.96 5.85 Fe [illegible] 5.94 5.4-6.0 (Mn [illegible]/Co [illegible])2 = 1.28-1.42 ~ 1.35