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The element Yttrium(Y) contains collectively, protons, neutrons and electrons.

Its atomic no. is 39. This tells us that it contains 39 protons, 39 electrons and its commomest isotope contains 50 neutrons. giving it an Atomic Mass of '89' (39+50).

At room STP is is a metal and solid.

Discovered by Gadolin in Ytterby in Sweden in 1794,.

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lenpollock

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1y ago

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