This element has been known since antiquity. The Latin word for tin is stannum.
Ionization energies
SnI 7.3 eV, SnII 14.6 eV, SnIII 30.5 eV.
Absorption lines of SnI
The equivalent width of SnI 3801(2) line in the sun is 0.006.
Absorption lines of SnII
| Group | III |
| K0 | 0.017 |
| K3 | 0.024 |
Note: Note that there exists an atmospheric absorption band near this line. |
|
Behavior in non-normal stars
Adelman et al. (1979) announced SnI to be probably present in one
Ap star of the Cr-Eu-Sr subgroup.
Isotopes
Sn has ten stable isotopes, Sn 112, 114, 115, 116, 117, 118, 119, 120,
122 and 124, as well as 18 short-lived isotopes and isomers. In the
solar system the respective frequencies are 1%, 1%, 0.4%, 15%, 8%,
24%, 9%,32%, 5% and 5%. Among the unstable isotopes, Sn26 has
a half life of 105 years.
Origin
Sn can be produced by the p, s and r processes. Pure r process products
are Sn122 and Snl24. Sn 116,117,118,119 and 120
are produced
by both the r process and the s process. Sn112 iS a pure p
process product, Sn114 iS produced by either the p process or
the s process and Sn115 by the r, s or p processes.
Published in "The Behavior of Chemical Elements in Stars", Carlos Jaschek and Mercedes Jaschek, 1995, Cambridge University Press.