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Rare earth oxides formula weight

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Atomic Symbol	Atomic Number	Atomic Weight	Rare earth Oxide	F.Wt	Half F.Wt
La	57	138.905	La2O3	305.8	162.9
Ce	58	140.12	CeO2	172.1	172.1
Pr	59	140.908	Pr6O11	1021.4	170.2
Nd	60	144.2	Nd2O3	336.4	168.2
Sm	62	150.4	Sm2O3	348.8	174.4
Eu	63	151.96	Eu2O3	351.9	176.0
Gd	64	157.2	Gd2O3	362.4	181.2
Tb	65	158.925	Tb4O7	747.7	186.9
Dy	66	162.5	Dy2O3	373.0	186.5
Ho	67	164.93	Ho2O3	377.9	188.9
Er	68	167.2	Er2O3	382.4	191.2
Tm	69	168.93	Tm2O3	385.87	192.93
Yb	70	173	Yb2O3	394.0	197.0
Lu	71	174.96	Lu2O3	397.9	199.0
Sc	21	44.9559	Sc2O3	137.91	69.0
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