Stable isotopes are widely used in nuclear industry, electronics, medical research, meteorology, physics, chemistry, biotechnology, agrochemistry and other spheres of science and technology. We offer key stable isotopes with high level of purity and enrichment. No matter what situation in the World is - nothing can prevent us to fulfil our commitments to the new clients and the Partners who we've been connected to by the years of mutual trust. Please refer to Isotope.one for current offers
Isotopes are two or more types of atoms that have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), and that differ in nucleon numbers (mass numbers) due to different numbers of neutrons in their nuclei. While all isotopes of a given element have almost the same chemical properties, they have different atomic masses and physical properties
The number of protons within the atom's nucleus is called atomic number and is equal to the number of electrons in the neutral (non-ionized) atom. Each atomic number identifies a specific element, but not the isotope; an atom of a given element may have a wide range in its number of neutrons. The number of nucleons (both protons and neutrons) in the nucleus is the atom's mass number, and each isotope of a given element has a different mass number
Stable nuclides are nuclides that are not radioactive and so (unlike radionuclides) do not spontaneously undergo radioactive decay. When such nuclides are referred to in relation to specific elements, they are usually termed stable isotopes. The term stable isotope has a meaning similar to stable nuclide, but is preferably used when speaking of nuclides of a specific element. Most naturally occurring nuclides are stable (about 252). Some isotopes that are classed as stable are predicted to have extremely long half-lives
C
6
12.011
Si
14
28.085
S
16
32.06
Ar
18
39.948
Fe
26
55.845
Ni
28
58.693
Zn
30
65.38
Ge
32
72.630
Se
74
78.971
Kr
36
83.798
Mo
42
95.95
Sn
50
118.71
Te
52
127.60
Xe
54
131.29
W
74
183.84
Ir
77
192.21
Pb
82
207.2
B
5
10.81
Cr
24
51.996
Cd
48
112.41
Os
76
190.23
If the predicted half-life falls into an experimentally accessible range, such isotopes may be moved from the list of stable nuclides to the radioactive category, once their activity is observed
Stable isotopes on Earth are believed to have been formed in processes of nucleosynthesis, either in the Big Bang, or in generations of stars that preceded the formation of the Solar system
If the half-life of a nuclide is comparable to, or greater than the Earth's age, a significant amount will have survived since the formation of the Solar system, and then is said to be primordial
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