Yttrium (Y) – Element 39 of the periodic table
Yttrium (symbol Y) is element number 39 of the periodic table and belongs to the “Transition metal” category. Its atomic mass is about 88.906, and its phase under standard conditions is Solid. This element sits in period 5 and group 3 of the periodic table, and its electrons are arranged in shells of 2, 8, 18, 9, 2. The short electron configuration of Yttrium is [Kr] 4d¹ 5s². Known uses of Yttrium include Red LEDs, Superalloys and Lasers.