Referring to Fig. 38.7, write equations describing the decays of(a) radon-222 ?(b) lead-214. 146 Start: 4.46 x
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Referring to Fig. 38.7, write equations describing the decays of(a) radon-222 ?(b) lead-214.
Transcribed Image Text:
146 Start: 4.46 x 10°y 145 uranjum-238 144 234Th24.1 d 143 234pa6.75 h 142 141 2.45x 10°y 140 20Th 139 7.54x 10ʻy 138 I 137 1.6x 10'y 136 3.82 d 135 134 3.11 min 218Po 133 132 214Pb 27 m 214B. 131 19.9 m 214po a decay 130 1.6× 10 s 129 B decay 128 210Ph 22.3 y 127 5.01 d 126 210Po End point: stable lead-206 125 20%PD 124 80 81 82 83 84 85 86 87 88 89 90 91 92 93 Hg TI Pb Bi Po At Rn Fr Ra Ac Th Pa U Np '138 d z- Atomic number, Z Neutron number, A - Z
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a The decay of radon222 can be described by the following equation Rn222 Po218 alpha part...View the full answer
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