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preface to fifteenth edition

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PROPERTIES OF ATOMS, RADICALS, AND BONDS 4.83<br />

TABLE 4.18<br />

Relative Abundances of Naturally Occurring Iso<strong>to</strong>pes (Continued)<br />

Element<br />

Mass<br />

number Percent Element<br />

Mass<br />

number<br />

Percent<br />

Osmium 184 0.020(3)<br />

186 1.58(2)<br />

187 1.6(4)<br />

188 13.3(1)<br />

189 16.1(1)<br />

190 26.4(2)<br />

192 41.0(3)<br />

Oxygen 16 99.76(1)<br />

17 0.04<br />

18 0.20(1)<br />

Palladium 102 1.02(1)<br />

104 11.14(8)<br />

105 22.33(8)<br />

106 27.33(3)<br />

108 26.46(9)<br />

110 11.72(9)<br />

Phosphorus 31 100<br />

Platinum 190 0.01(1)<br />

192 0.79(6)<br />

194 32.9(6)<br />

195 33.8(6)<br />

196 25.3(6)<br />

198 7.2(2)<br />

Potassium 39 93.258(4)<br />

40 0.0117(1)<br />

41 6.730(3)<br />

Praseodymium 141 100<br />

Pro<strong>to</strong>actinium 230 100<br />

Rhenium 185 37.40(2)<br />

187 62.60(2)<br />

Rhodium 103 100<br />

Rubidium 85 72.17(2)<br />

87 27.83(2)<br />

Ruthenium 96 5.52(6)<br />

98 1.88(6)<br />

99 12.7(1)<br />

100 12.6(1)<br />

101 17.0(1)<br />

102 31.6(2)<br />

104 18.7(2)<br />

Samarium 144 3.1(1)<br />

147 15.0(2)<br />

148 11.3(1)<br />

149 13.8(1)<br />

150 7.4(1)<br />

152 26.7(2)<br />

154 22.7(2)<br />

Scandium 45 100<br />

Selenium 74 0.89(2)<br />

76 9.36(11)<br />

77 6.63(6)<br />

78 23.78(9)<br />

80 49.61(10)<br />

82 8.73(6)<br />

Silicon 28 92.23(2)<br />

29 4.67(2)<br />

30 3.10(1)<br />

Silver 107 51.839(7)<br />

109 48.161(7)<br />

Sodium 23 100<br />

Strontium 84 0.56(1)<br />

86 9.86(1)<br />

87 7.00(1)<br />

88 82.58(1)<br />

Sulfur 32 95.02(9)<br />

33 0.75(4)<br />

34 4.21(8)<br />

36 0.02(1)<br />

Tantalum 180 0.012(2)<br />

181 99.988(2)<br />

Tellurium 120 0.096(2)<br />

122 2.603(4)<br />

123 0.908(2)<br />

124 4.816(6)<br />

125 7.139(6)<br />

126 18.952(11)<br />

128 31.687(11)<br />

130 33.799(10)<br />

Terbium 159 100<br />

Thallium 203 29.52(1)<br />

205 70.48(1)<br />

Thorium 228 100<br />

Thullium 169 100<br />

Tin 112 0.97(1)<br />

114 0.65(1)<br />

115 0.34(1)<br />

116 14.53(11)<br />

117 7.68(7)<br />

118 24.23(11)<br />

119 8.59(4)<br />

120 32.59(10)<br />

122 4.63(3)<br />

124 5.79(5)<br />

Titanium 46 8.25(3)<br />

47 7.44(2)<br />

48 73.72(3)<br />

49 5.41(2)<br />

50 5.4(1)<br />

Tungsten 180 0.12(1)<br />

182 26.50(3)<br />

183 14.31(1)<br />

184 30.64(1)

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