2+-+Lowry+-+Se

-Selenium-S-





Denistiy-4.819

Melting Point- 221 C Boiling Point-685 C  Atomic Number- 34 Atomic Mass- 79 Protons-34 Electrons- 34 Neutrons- 45

Selenium isn't made from a lab, it comes straight from the ground! Selenium is also a nonmetal, but its sometimes considered a metalloid.Selenium has a half life of 327,000 year.