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Johan Gadolin
It is yttrium III oxide.
The word nitrate oxide is meaning less it is either nitric oxide or nitrogen oxide, these compounds are covalent.
The formula for the oxide ion is O2-, and the formula for the nitrate ion is NO3-.
Yttrium barium copper oxide (a ceramic)
Yes, yttrium can combine with other elements to form compounds. Yttrium is a transition metal in the periodic table and has a valence electron configuration that allows it to form chemical bonds with other elements. It can form various compounds, such as yttrium oxide (Y2O3) and yttrium chloride (YCl3).
No, laughing gas is Nitrous oxide(N2O)
Today it is mined as Monazite, in Brazil , China, California.
In 1787, Carl Axel Arrhenius found a new mineral near Ytterby in Sweden and named it ytterbite, after the village. Johan Gadolin discovered yttrium's oxide in Arrhenius' sample in 1789, and Anders Gustaf Ekeberg named the new oxide yttria.
lead oxide
It doesn't.
The ionic compound formed by reaction of the elements with atomic symbols K and O is named potassium oxide and has the formula unit K2O. (The lower case letters k and o are never proper atomic symbols!)