Selenium
element
Se
A photosensitive element once at the heart of every photocopier
Before digital printing, selenium's sensitivity to light powered the photocopier in every office on earth.
Selenium (Se) - a reactive nonmetal, painted as an original watercolour derived from its place in the periodic table.
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Crystallography
| Catalogue identity | Selenium |
| Formula | Se |
| Element | Se (Z = 34) |
