Hassanal Bolkiah Muiz’zaddin Wad’daulah bin Omar Ali Saifuddien III.

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Europium, 63.

Selenium, 34.

Hassium, 108.

Roentgenium, 111.

Hermann Ludwig Ferdinand von Helmholtz.

Katharina Stummeyer.

the element that can see through better than x-rays.

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Bernard Jean Étienne Arnault.

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