=== [[Wasserstoff ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]] |-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=H-1 <sub>1</sub>H] || 99,9885 % || stabil
|-
|-
|}
=== [[Helium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=He-3 <sub>3</sub>He] || 0,000137 % || stabil
|-
|}
=== [[Lithium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=He-4 <sub>4</sub>He] || 99,999863 % || stabil
|-
|}
=== [[Beryllium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Be-9 <sub>9</sub>Be] || 100 % || stabil
|-
|}
=== [[Bor ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=B-10 <sub>10</sub>B] || 19,9 % || stabil
|-
|}
=== [[Kohlenstoff ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=C-12 <sub>12</sub>C] || 98,93 % || stabil
|-
|}
=== [[Stickstoff ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=N-14 <sub>14</sub>N] || 99,632 % || stabil
|-
|}
=== [[Sauerstoff ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=O-16 <sub>16</sub>O] || 99,757 % || stabil
|-
|}
=== [[Fluor ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=F-19 <sub>19</sub>F] || 100 % || stabil
|-
|}
=== [[Neon ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ne-20 <sub>20</sub>Ne] || 90,48 % || stabil
|-
|}
=== [[Natrium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Na-23 <sub>23</sub>Na] || 100 % || stabil
|-
|}
=== [[Magnesium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Mg-24 <sub>24</sub>Mg] || 78,99 % || stabil
|-
|}
=== [[Aluminium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Al-27 <sub>27</sub>Al] || 100 % || stabil
|-
|}
=== [[Silicium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Si-28 <sub>28</sub>Si] || 92,2297 % || stabil
|-
|}
=== [[Phosphor ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=P-31 <sub>31</sub>P] || 100 % || stabil
|-
|}
=== [[Schwefel ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=S-32 <sub>32</sub>S] || 94,93 % || stabil
|-
|}
=== [[Chlor ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Cl-35 <sub>35</sub>Cl] || 75,78 % || stabil
|-
|}
=== [[Argon ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ar-36 <sub>36</sub>Ar] || 0,3365 % || stabil
|-
|}
=== [[Kalium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=K-39 <sub>39</sub>K] || 93,2581 % || stabil
|-
|}
=== [[Calcium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ca-40 <sub>40</sub>Ca] || 96,941 % || stabil
|-
|}
=== [[Scandium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Sc-45 <sub>45</sub>Sc] || 100 % || stabil
|-
|}
=== [[Titan ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ti-46 <sub>46</sub>Ti] || 8,25 % || stabil
|-
|}
=== [[Vanadium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=V-50 <sub>50</sub>V] || 0,25 % || stabil
|-
|}
=== [[Chrom ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Cr-50 <sub>50</sub>Cr] || 4,345 % || stabil
|-
|}
=== [[Mangan ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Mn-55 <sub>55</sub>Mn] || 100 % || stabil
|-
|}
=== [[Eisen ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Fe-54 <sub>54</sub>Fe] || 5,845 % || stabil
|-
|}
=== [[Cobalt ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Co-59 <sub>59</sub>Co] || 100 % || stabil
|-
|}
=== [[Nickel ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ni-58 <sub>58</sub>Ni] || 68,0769 % || stabil
|-
|}
=== [[Kupfer ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Cu-63 <sub>63</sub>Cu] || 69,17 % || stabil
|-
|}
=== [[Zink ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Zn-64 <sub>64</sub>Zn] || 48,63 % || stabil
|-
|}
=== [[Gallium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ga-69 <sub>69</sub>Ga] || 60,108 % || stabil
|-
|}
=== [[Germanium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ge-70 <sub>70</sub>Ge] || 20,84 % || stabil
|-
|}
=== [[Arsen ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=As-75 <sub>75</sub>As] || 100 % || stabil
|-
|}
=== [[Selen ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Se-74 <sub>74</sub>Se] || 0,89 % || stabil
|-
|}
=== [[Brom ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Br-79 <sub>79</sub>Br] || 50,69 % || stabil
|-
|}
=== [[Krypton ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Kr-78 <sub>78</sub>Kr] || 0,35 % || stabil
|-
|}
=== [[Rubidium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Rb-85 <sub>85</sub>Rb] || 72,17 % || stabil
|-
|}
=== [[Strontium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Sr-84 <sub>84</sub>Sr] || 0,56 % || stabil
|-
|}
=== [[Yttrium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Y-89 <sub>89</sub>Y] || 100 % || stabil
|-
|}
=== [[Zirconium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Zr-90 <sub>90</sub>Zr] || 51,45 % || stabil
|-
|}
=== [[Niob ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Nb-93 <sub>93</sub>Nb] || 100 % || stabil
|-
|}
=== [[Molybdän ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Mo-92 <sub>92</sub>Mo] || 14,84 % || stabil
|-
|}
=== [[Technetium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Tc- <sub></sub>Tc] || % || stabil
|-
|}
=== [[Ruthenium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ru-96 <sub>96</sub>Ru] || 5,54 % || stabil
|-
|}
=== [[Rhodium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Rh-103 <sub>103</sub>Rh] || 100 % || stabil
|-
|}
=== [[Palladium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Pd-102 <sub>102</sub>Pd] || 1,02 % || stabil
|-
|}
=== [[Silber ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ag-107 <sub>107</sub>Ag] || 51,839 % || stabil
|-
|}
=== [[Cadmium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Cd-106 <sub>106</sub>Cd] || 1,25 % || stabil
|-
|}
=== [[Indium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=In-113 <sub>113</sub>In] || 4,29 % || stabil
|-
|}
=== [[Zinn ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Sn-112 <sub>112</sub>Sn] || 0,97 % || stabil
|-
|}
=== [[Antimon ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Sb-121 <sub>121</sub>Sb] || 57,21 % || stabil
|-
|}
=== [[Tellur ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Te-120 <sub>120</sub>Te] || 0,09 % || stabil
|-
|}
=== [[Iod ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=I-127 <sub>127</sub>I] || 100 % || stabil
|-
|}
=== [[Xenon ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Xe-124 <sub>124</sub>Xe] || 0,09 % || stabil
|-
|}
=== [[Caesium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Cs-133 <sub>133</sub>Cs] || 100 % || stabil
|-
|}
=== [[Barium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ba-130 <sub>130</sub>Ba] || 0,106 % || stabil
|-
|}
=== [[Lanthan ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=La-138 <sub>138</sub>La] || 0,09 % || stabil
|-
|}
=== [[Cer ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ce-136 <sub>136</sub>Ce] || 0,185 % || stabil
|-
|}
=== [[Praseodym ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Pr-141 <sub>141</sub>Pr] || 100 % || stabil
|-
|}
=== [[Neodym ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Nd-142 <sub>142</sub>Nd] || 27,2 % || stabil
|-
|}
=== [[Promethium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Pm- <sub></sub>Pm] || % || stabil
|-
|}
=== [[Samarium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Sm-144 <sub>144</sub>Sm] || 3,07 % || stabil
|-
|}
=== [[Europium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Eu-151 <sub>151</sub>Eu] || 47,81 % || stabil
|-
|}
=== [[Gadolinium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Gd-152 <sub>152</sub>Gd] || 0,2 % || stabil
|-
|}
=== [[Terbium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Tb-159 <sub>159</sub>Tb] || 100 % || stabil
|-
|}
=== [[Dysprosium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Dy-156 <sub>156</sub>Dy] || 0,06 % || stabil
|-
|}
=== [[Holmium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ho-165 <sub>165</sub>Ho] || 100 % || stabil
|-
|}
=== [[Erbium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Er-162 <sub>162</sub>Er] || 0,14 % || stabil
|-
|}
=== [[Thulium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Tm-169 <sub>169</sub>Tm] || 100 % || stabil
|-
|}
=== [[Ytterbium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Yb-168 <sub>168</sub>Yb] || 0,13 % || stabil
|-
|}
=== [[Lutetium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Lu-175 <sub>175</sub>Lu] || 97,41 % || stabil
|-
|}
=== [[Hafnium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Hf-174 <sub>174</sub>Hf] || 0,16 % || stabil
|-
|}
=== [[Tantal ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ta-180 <sub>180</sub>Ta] || 0,012 % || stabil
|-
|}
=== [[Wolfram ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=W-180 <sub>180</sub>W] || 0,12 % || stabil
|-
|}
=== [[Rhenium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Re-185 <sub>185</sub>Re] || 37,4 % || stabil
|-
|}
=== [[Osmium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Os-184 <sub>184</sub>Os] || 0,02 % || stabil
|-
|}
=== [[Iridium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ir-191 <sub>191</sub>Ir] || 37,3 % || stabil
|-
|}
=== [[Platin ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Pt-190 <sub>190</sub>Pt] || 0,014 % || stabil
|-
|}
=== [[Gold ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Au-197 <sub>197</sub>Au] || 100 % || stabil
|-
|}
=== [[Quecksilber ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Hg-196 <sub>196</sub>Hg] || 0,15 % || stabil
|-
|}
=== [[Thallium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Tl-203 <sub>203</sub>Tl] || 29,524 % || stabil
|-
|}
=== [[Blei ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Pb-204 <sub>204</sub>Pb] || 1,4 % || stabil
|-
|}
=== [[Bismut ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Bi-209 <sub>209</sub>Bi] || 100 % || stabil
|-
|}
=== [[Polonium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Po- <sub></sub>Po] || % || stabil
|-
|}
=== [[Astat ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Radon ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Rn- <sub></sub>Rn] || % || stabil
|-
|}
=== [[Francium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Radium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ra- <sub></sub>Ra] || % || stabil
|-
|}
=== [[Actinium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Ac- <sub></sub>Ac] || % || stabil
|-
|}
=== [[Thorium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Th-232 <sub>232</sub>Th] || 100 % || stabil
|-
|}
=== [[Protactinium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=Pa-231 <sub>231</sub>Pa] || 100 % || stabil
|-
|}
=== [[Uran ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
| [http://atom.kaeri.re.kr/cgi-bin/nuclide?nuc=U-234 <sub>234</sub>U] || 0,0055 % || stabil
|-
|}
=== [[Neptunium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Plutonium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Americium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Curium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Berkelium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Californium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Einsteinium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Fermium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Mendelevium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Nobelium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Lawrencium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Rutherfordium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Dubnium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Seaborgium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Bohrium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Hassium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Meitnerium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Darmstadtium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Roentgenium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Ununbium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Ununtrium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Ununquadium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Ununpentium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Ununhexium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Ununseptium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
|}
=== [[Ununoctium ]] ===
{| {{tabelle}}
! natürliches Isotop !! Anteil !! [[Halbwertzeit]]
|-
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