Atomistry » Selenium » Isotopes
Atomistry »
  Selenium »
    Isotopes »

Selenium Isotopes

Proton number: 34

Stable Isotopes


Selenium stable isotope number 1: 74Se
Neutrons: 40;
Abundance: 0.89%;
Jn: 0+;

Selenium stable isotope number 2: 76Se
Neutrons: 42;
Abundance: 9.37%;
Jn: 0+;

Selenium stable isotope number 3: 77Se
Neutrons: 43;
Abundance: 7.63%;
Jn: 1/2-;

Selenium stable isotope number 4: 78Se
Neutrons: 44;
Abundance: 23.77%;
Jn: 0+;

Selenium stable isotope number 5: 80Se
Neutrons: 46;
Abundance: 49.61%;
Jn: 0+;

Selenium stable isotope number 6: 82Se
Neutrons: 48;
Abundance: 8.73%;
Jn: 0+;

Natural Radioactive isotopes

There is no Selenium Natural Radioactive isotopes known

Artificial Radioactive isotopes


Selenium radioactive isotope number 1: 65Se
Neutrons: 31;
Jn: Unknown;
Decay: ε : 100.00 %;
t1/2: 0.05s ≈ 50.00 ms;

Selenium radioactive isotope number 2: 66Se
Neutrons: 32;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 0.033s ≈ 33.00 ms;

Selenium radioactive isotope number 3: 67Se
Neutrons: 33;
Jn: Unknown;
Decay: ε : 100.00 %
β -p : 0.50 %;
t1/2: 0.136s ;

Selenium radioactive isotope number 4: 68Se
Neutrons: 34;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 35.5s ;

Selenium radioactive isotope number 5: 69Se
Neutrons: 35;
Jn: 1/2-,3/2-;
Decay: ε : 100.00 %
ε p : 0.05 %;
t1/2: 27.4s ;

Selenium radioactive isotope number 6: 70Se
Neutrons: 36;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 2466s ≈ 41.10 m;

Selenium radioactive isotope number 7: 71Se
Neutrons: 37;
Jn: 5/2-;
Decay: ε : 100.00 %;
t1/2: 284.4s ≈ 4.74 m;

Selenium radioactive isotope number 8: 72Se
Neutrons: 38;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 725760s ≈ 8.40 d;

Selenium radioactive isotope number 9: 73Se
Neutrons: 39;
Jn: 9/2+;
Decay: ε : 100.00 %;
t1/2: 25740s ≈ 7.15 h;

Selenium radioactive isotope number 10: 73Se
Neutrons: 39;
Jn: 3/2-;
Decay: IT : 72.60 %
ε : 27.40 %;
t1/2: 2388s ≈ 39.80 m;

Selenium radioactive isotope number 11: 75Se
Neutrons: 41;
Jn: 5/2+;
Decay: ε : 100.00 %;
t1/2: 10349860s ≈ 119.79 d;

Selenium radioactive isotope number 12: 77Se
Neutrons: 43;
Jn: 7/2+;
Decay: IT : 100.00 %;
t1/2: 17.36s ;

Selenium radioactive isotope number 13: 79Se
Neutrons: 45;
Jn: 7/2+;
Decay: β - : 100.00 %;
t1/2: 9.30312E+12s ≈ 2.950000e+5 y;

Selenium radioactive isotope number 14: 79Se
Neutrons: 45;
Jn: 1/2-;
Decay: IT : 99.94 %
β - : 0.06 %;
t1/2: 235.2s ≈ 3.92 m;

Selenium radioactive isotope number 15: 81Se
Neutrons: 47;
Jn: 1/2-;
Decay: β - : 100.00 %;
t1/2: 1107s ≈ 18.45 m;

Selenium radioactive isotope number 16: 81Se
Neutrons: 47;
Jn: 7/2+;
Decay: IT : 99.95 %
β - : 0.05 %;
t1/2: 3436.8s ≈ 57.28 m;

Selenium radioactive isotope number 17: 82Se
Neutrons: 48;
Jn: 8+;
Decay: IT : 100.00 %;
t1/2: 6.6E-09s ≈ 6.60 ns;

Selenium radioactive isotope number 18: 83Se
Neutrons: 49;
Jn: 9/2+;
Decay: β - : 100.00 %;
t1/2: 1338s ≈ 22.30 m;

Selenium radioactive isotope number 19: 83Se
Neutrons: 49;
Jn: 1/2-;
Decay: β - : 100.00 %;
t1/2: 70.1s ;

Selenium radioactive isotope number 20: 84Se
Neutrons: 50;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 186s ≈ 3.10 m;

Selenium radioactive isotope number 21: 85Se
Neutrons: 51;
Jn: 5/2+;
Decay: β - : 100.00 %;
t1/2: 31.7s ;

Selenium radioactive isotope number 22: 86Se
Neutrons: 52;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 15.3s ;

Selenium radioactive isotope number 23: 87Se
Neutrons: 53;
Jn: 5/2+;
Decay: β - : 100.00 %
β -n : 0.20 %;
t1/2: 5.5s ;

Selenium radioactive isotope number 24: 88Se
Neutrons: 54;
Jn: 0+;
Decay: β - : 100.00 %
β -n : 0.67 %;
t1/2: 1.53s ;

Selenium radioactive isotope number 25: 89Se
Neutrons: 55;
Jn: 5/2+;
Decay: β - : 100.00 %
β -n : 7.80 %;
t1/2: 0.41s ;

Selenium radioactive isotope number 26: 90Se
Neutrons: 56;
Jn: 0+;
Decay: β -
β -n;
t1/2: 3E-07s ≈ 0.30 µs;

Selenium radioactive isotope number 27: 91Se
Neutrons: 57;
Jn: Unknown;
Decay: β - : 100.00 %
β -n : 21.00 %;
t1/2: 0.27s ;

Selenium radioactive isotope number 28: 92Se
Neutrons: 58;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 3E-07s ≈ 0.30 µs;

Selenium radioactive isotope number 29: 93Se
Neutrons: 59;
Jn: 1/2+;
Decay: β -;
t1/2: 1.5E-07s ≈ 0.15 µs;

Selenium radioactive isotope number 30: 94Se
Neutrons: 60;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 1.5E-07s ≈ 0.15 µs;

Last articles

Zn in 7M6U
Zn in 7NNG
Zn in 7NEE
Zn in 7NEU
Zn in 7M3K
Zn in 7KWD
Zn in 7KYH
Zn in 7KNG
Zn in 7KY2
Zn in 7KYF
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy