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#chemistry
#element
#periodic table
#elements
#rare earth element
#rare earth elements
#ytterbia
#ytterbium
#terbium
#sweden
#stockholm
#scandanavia
#gadolin
#gadolinium
#arrhenius
#the earth story
#science
#history
#geology
#mining
#chemistry
#element
#periodic table
#elements
#rare earth element
#rare earth elements
#ytterbia
#ytterbium
#terbium
#sweden
#stockholm
#scandanavia
#gadolin
#gadolinium
#arrhenius
#the earth story
#science
#history
#geology
#mining
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