Atom
Name
Selenium
IUPAC name
Selenium
InChI
InChI=1S/Se
InChI key
BUGBHKTXTAQXES-UHFFFAOYSA-N
CAS number
7782-49-2
Comments
natural Se - 49.6% 80Se + 23.8% 78Se + 9.4% 76Se + 8.7% 82Se + 7.6% 77Se + 0.9% 74Se
Symbol
Se
Formula
$Se$
Charge
0
Atomic number Z
34
Molar mass
78.96 $g/mol$
State STP
solid
Electronegativity
2.55
Isotope mixture type
terrestrial abundance
Type K L1 L2 L3 M1 M5
Energy (keV) 12.6578 1.6539 1.4762 1.4358 0.2296 0.0546