Selenium By: austin bell

Element-Selenium

Symbol-Se

Atomic number-34

protons-34 neutrons-45 Electrons-34

Atomic Mass-78.96

The element selenium is a solid

Its a non-metal

It was discovered by Johan Gottlieb Guhn and Jons Jacob Berzelius

it was discorvered in 1817

It appears in some foods, can also be used in medicine

Physical properties-solid, density, melting point 221 degrees c

Chemical properties-it rust easy, it burns easy, easily combines with hydrogen fluorine and choline.

It was discovered in sweeden.

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