Element:Er

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Atomic Number

68

Atomic Name

Erbium(エルビウム)

Stable Isotopes

isotope	mass	isotopic abundance (%)
162Er	161.928775	0.139(5)
164Er	163.929197	1.601(3)
166Er	165.930290	33.503(36)
167Er	166.932046	22.869(9)
168Er	167.932368	26.978(18)
170Er	169.935461	14.910(36)

Radioisotopes

isotope	half life	disintegration form
169Er	9.40 days	beta-
171Er	7.516 hours	beta-

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