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Memory Beta, non-canon Star Trek Wiki

Yttrium (symbol Y) is a chemical element, a transition metal with atomic number 39 on the periodic table.

Characteristics and history[]

Yttrium has an atomic mass of 88.905. This element was discovered by Humans for the first time on Earth's European continent in Finland, in the year 1794. (ST reference: Star Fleet Medical Reference Manual)

In 2376, Verad Kalon used a phaser of which yttrium was part of its casing. (ST - Divided We Fall comic: "All Fall Down")



The details of how the yttrium reference came to be used in "All Fall Down" can be found here: [1].


External link[]