Periodensystem   >>   Begriffe, Tabellen
   
 
Prozentualer Anteil der natürlichen Isotope
 
Als Isotope werden verschiedene Atomsorten eines Elements bezeichnet, die zwar die gleiche Protonenzahl, aber unterschiedliche Neutronenzahlen besitzen. Der Durchschnittswert aus den natürlich vorkommenden Isotopen dient zur Berechnung der relativen Atommasse bei den Elementen im Periodensystem.


Actinium
Ac-228: in Spuren

Aluminium
Al-27: 100%
   
Antimon
Sb-121: 57,2%
Sb-123: 42,8%
   
Argon
Ar-36: 0,337%
Ar-38: 0,063%
Ar-40: 99,600%
   
Arsen
As-75: 100%
   
Astat
Spuren div. Isotope

Barium
Ba-130: 0,106%
Ba-132: 0,101%
Ba-134: 2,417%
Ba-135: 6,592%
Ba-136: 7,854%
Ba-137: 11,232%
Ba-138: 71,698%
   
Beryllium
Be-9: 100%

Bismut
Bi-209: 100%
   
Blei
Pb-204: 1,4%
Pb-206: 24,1%
Pb-207: 22,1%
Pb-208: 52,4%
   
Bor
B-10: 19,9%
B-11: 80,1%
   
Brom
Br-79: 50,69%
Br-81: 49,31%
   
Cadmium
Cd-106: 1,25%
Cd-108: 0,89%
Cd-110: 12,49%
Cd-111: 12,80%
Cd-112: 24,13%
Cd-113: 12,22%
Cd-114: 28,73%
Cd-116: 7,49%
   
Calcium
Ca-40: 96,941%
Ca-42: 0,647%
Ca-43: 0,135%
Ca-44: 2,086%
Ca-46: 0,004%
Ca-48: 0,187%

Caesium
Cs-133: 100%
   
Cer
Ce-136: 0,185%
Ce-138: 0,251%
Ce-140: 88,450%
Ce-142: 11,114%
   
Chlor
Cl-35: 75,76%
Cl-37: 24,24%
Chrom
Cr-50: 4,345%
Cr-52: 83,789%
Cr-53: 9,501%
Cr-54: 2,365%
   
Cobalt
Co-59: 100%
   
Dysprosium
Dy-156: 0,056%
Dy-158: 0,095%
Dy-160: 2,329%
Dy-161: 18,889%
Dy-162: 25,475%
Dy-163: 24,896%
Dy-164: 28,260%

Eisen
Fe-54: 5,845%
Fe-56: 91,754%
Fe-57: 2,119%
Fe-58: 0,282%
   
Erbium
Er-162: 0,139%
Er-164: 1,601%
Er-166: 33,503%
Er-167: 22,869%
Er-168: 26,978%
Er-170: 14,910%
   
Europium
Eu-151: 47,81%
Eu-153: 52,19%
   
Fluor
F-19: 100%
   
Francium
Fr-223: 100%

Gadolinium
Gd-152: 0,20%
Gd-154: 2,18%
Gd-155: 14,80%
Gd-156: 20,47%
Gd-157: 15,65%
Gd-158: 24,84%
Gd-160: 21,86%
   
Gallium
Ga-69: 60,108%
Ga-71: 39,892%

Germanium
Ge-70: 20,38%
Ge-72: 27,31%
Ge-73: 7,76%
Ge-74: 36,72%
Ge-76: 7,83%
   
Gold
Au-197: 100%
   
Hafnium
Hf-174: 0,16%
Hf-176: 5,26%
Hf-177: 18,60%
Hf-178: 27,28%
Hf-179: 13,62%
Hf-180: 35,08%
   
Helium
He-3: 0,000134%
He-4: 99,999866%

Holmium
Ho-165: 100%

Indium
In-113: 4,29%
In-115: 96,71%

Iod
I-127: 100%
   
Iridium
Ir-191: 37,3%
Ir-193: 62,7%
   
Kalium
K-39: 93,2581%
K-40: 0,0117%
K-41: 6,7302%
   
Kohlenstoff
C-12: 98,93%
C-13: 1,07%
   
Krypton
Kr-78: 0,355%
Kr-80: 2,286%
Kr-82: 11,593%
Kr-83: 11,500%
Kr-84: 56,987%
Kr-86: 17,279%
   
Kupfer
Cu-63: 69,15%
Cu-65: 30,85%

Lanthan
La-138: 0,090%
La-139: 99,910%
   
Lithium
Li-6: 7,59%
Li-7: 92,41%
   
Lutetium
Lu-175: 97,41%
Lu-176: 2,59%
   
Magnesium
Mg-24: 78,99%
Mg-25: 10,00%
Mg-26: 11,01%
   
Mangan
Mn-55: 100%
   
Molybdän
Mo-92: 14,77%
Mo-94: 9,23%
Mo-95: 15,90%
Mo-96: 16,68%
Mo-97: 9,56%
Mo-98: 24,19%
Mo-100: 9,67%

Natrium
Na-23: 100%
   
Neodym
Nd-142: 27,2%
Nd-143: 12,2%
Nd-144: 23,8%
Nd-145: 8,3%
Nd-146: 17,2%
Nd-148: 5,7%
Nd-150: 5,6%
   
Neon
Ne-20: 90,48%
Ne-21: 0,27%
Ne-22: 9,25%

Nickel
Ni-58: 68,0769%
Ni-60: 26,2231%
Ni-61: 1,1399%
Ni-62: 3,6345%
Ni-64: 0,9256%
Niob
Nb-93: 100%
   
Osmium
Os-184: 0,02%
Os-186: 1,59%
Os-187: 1,96%
Os-188: 13,24%
Os-189: 16,15%
Os-190: 26,26%
Os-192: 44,78%

Palladium
Pd-102: 1,02%
Pd-104: 11,14%
Pd-105: 22,33%
Pd-106: 27,33%
Pd-108: 26,46%
Pd-110: 11,72%
   
Phosphor
P-31: 100%
   
Platin
Pt-190: 0,014%
Pt-192: 0,782%
Pt-194: 32,967%
Pt-195: 33,832%
Pt-196: 25,242%
Pt-198: 7,163%
   
Plutonium
Pt-244: in Spuren

Polonium
Spuren div. Isotope

Praseodym
Pr-141: 100%
   
Promethium
Pm-147: 100%

Protactinium
Pa-231: 100%
   
Quecksilber
Hg-196: 0,15%
Hg-198: 9,97%
Hg-199: 16,87%
Hg-200: 23,10%
Hg-201: 13,18%
Hg-202: 29,86%
Hg-204: 6,87%
 
Radium
Ra-226: fast 100%
Spuren anderer Isotope

Radon
Rn-219: 1%
Rn-220: 9%
Rn-222: 90%

Rhenium
Re-185: 37,40%
Re-187: 62,60%
   
Rhodium
Rh-103: 100%
   
Rubidium
Rb-85: 72,17%
Rb-87: 27,83%
   
Ruthenium
Ru-96: 5,54%
Ru-98: 1,87%
Ru-99: 12,76%
Ru-100: 12,60%
Ru-101: 17,06%
Ru-102: 31,55%
Ru-104: 18,62%

Samarium
Sm-144: 3,07%
Sm-147: 14,99%
Sm-148: 11,24%
Sm-149: 13,82%
Sm-150: 7,38%
Sm-152: 26,75%
Sm-154: 22,75%
   
Sauerstoff
O-16: 99,757%
O-17: 0,038%
O-18: 0,205%

Scandium
Sc-45: 100%
   
Schwefel
S-32: 94,99%
S-33: 0,75%
S-34: 4,25%
S-36: 0,01%
   
Selen
Se-74: 0,89%
Se-76: 9,37%
Se-77: 7,63%
Se-78: 23,77%
Se-80: 49,61%
Se-82: 8,73%
   
Silber
Ag-107: 51,839%
Ag-109: 48,161%
   
Silicium
Si-28: 92,223%
Si-29: 4,685%
Si-30: 3,092%
   
Stickstoff
N-14: 99,636%
N-15: 0,364%
 
Strontium
Sr-84: 0,56%
Sr-86: 9,86%
Sr-87: 7,00%
Sr-88: 82,58%
   
Tantal
Ta-180: 0,012%
Ta-181: 99,988%
   
Tellur
Te-120: 0,09%
Te-122: 2,55%
Te-123: 0,89%
Te-124: 4,74%
Te-125: 7,07%
Te-126: 18,84%
Te-128: 31,74%
Te-130: 34,08%
   
Technetium
Tc-99: 100%

Terbium
Tb-159: 100%
   
Thallium
Tl-203: 29,52%
Tl-205: 70,48%
   
Thorium
Th-232: 100%

Thulium
Tm-169: 100%

Titan
Ti-46: 8,25%
Ti-47: 7,44%
Ti-48: 73,72%
Ti-49: 5,41%
Ti-50: 5,18%
   
Uran
U-234: 0,0054%
U-235: 0,7204%
U-238: 99,2742%
   
Vanadium
V-50: 0,250%
V-51: 99,750%
   
Wasserstoff
H-1: 99,9885%
H-2: 0,0115%
   
Wolfram
W-180: 0,12%
W-182: 26,50%
W-183: 14,31%
W-184: 30,64%
W-186: 28,43%

Xenon
Xe-124: 0,0952%
Xe-126: 0,0890%
Xe-128: 1,9102%
Xe-129: 26,4006%
Xe-130: 4,0710%
Xe-131: 21,2324%
Xe-132: 26,9086%
Xe-134: 10,4357%
Xe-136: 8,8573%
   
Ytterbium
Yb-168: 0,13%
Yb-170: 3,04%
Yb-171: 14,28%
Yb-172: 21,83%
Yb-173: 16,143%
Yb-174: 31,83%
Yb-176: 12,76%
   
Yttrium
Y-89: 100%
   
Zink
Zn-64: 48,268%
Zn-66: 27,975%
Zn-67: 4,102%
Zn-68: 19,024%
Zn-70: 0,631%
 
Zinn
Sn-112: 0,97%
Sn-114: 0,66%
Sn-115: 0,34%
Sn-116: 14,54%
Sn-117: 7,68%
Sn-118: 24,22%
Sn-119: 8,59%
Sn-120: 32,58%
Sn-122: 4,63%
Sn-124: 5,79%
   
Zirconium
Zr-90: 51,45%
Zr-91: 11,22%
Zr-92: 17,15%
Zr-94: 17,38%
Zr-96: 2,80%