You are watching: Which of the following would be an isotope of tin-119?
Tin has ten stable isotopes, the largest number of all elements. Because of this,the isotopic composition measurements involve an unusually large number of experimentallydetermined ratios, each subject to uncertainty. In 1969, the Commission assessed Ar(Sn) = 118.69(3) therefore preferring the chemically determined atomic-weight values. Thisviewpoint was reaffirmed until 1983 when the Commission was able to consider the firstcalibrated mass-spectrometric measurement, which reported Ar(Sn) = 118.7099(22) and demonstrated good agreement with many previous isotope-abundance measurements(after correcting those uncalibrated measurements for isotope fractionation). In 1983 the Commission changed the basis for the standard atomic weight of tin to mass spectrometry and thevalue to Ar(Sn) = 118.710(7).
The "g" annotation arises from the presence of naturally occurring fission products found in fossil reactors at Gabon, southwest Africa.
See more: When Does The Westing Game Take Place, The Westing Game Summary
TinAr(Sn) = 118.710(7) since 1983The name derives from the Anglo-Saxon tin of unknown origin. The symbol Sn is derivedfrom Latin stannum for alloys containing lead. The element was known in prehistoric times.