Date of Discovery:
1817
Discoverer: Jons Berzelius
Name Origin:
From the Greek word selênê (moon)
Uses: Photoelectric cells, TV cameras
Obtained From: Refining of lead, copper, nickel
Se
Se
The name of the moon.
Se
Se
Electrons: 34
Protons: 34
Neutrons: 45
Atomic Mass:
78.96 amu
Melting Point:
217.0 °C
490.15 °K
422.6 °F
Boiling Point:
684.9 °C
958.05005 °K
1264.8201 °F
Classification:
Non-metal
Crystal Structure:
Hexagonal
Density @ 293 K:
4.79 g/cm3
Color:
Gray
Non-Metals
Neighbors
Phosphorus Sulpher Chlorine
Arsenic Selenium Bromine
Antimony Tellurium Iodine
Neighbor