Ytterbium: numero ya atome 70, uburemere bwa atome 173.04, izina ryibintu ryakomotse aho ryavumbuwe. Ibiri muri ytterbium mubutaka ni 0.000266%, cyane cyane biboneka muri fosifori na zahabu yumukara udasanzwe. Ibiri muri monazite ni 0,03%, kandi hariho isotopi 7 karemano Yavumbuwe na: ...
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