What do the following ten elements have in common? Yttrium Ytterbium Terbium Erbium Gadolinium Thulium Scandium Holmium Dysprosium Lutetium The answer (and there is a tiny clue in some of the names) is that all ten elements were isolated from one sample, taken from a mine in the small village of Ytterby in Sweden. All … Continue reading What do Y, Yb, Tb, Er, Gd, Tm, Sc, Ho, Dy and Lu have in common?