Atom
Name
Barium
IUPAC name
Barium
InChI
InChI=1S/Ba
InChI key
DSAJWYNOEDNPEQ-UHFFFAOYSA-N
CAS number
7440-39-3
Comments
natural Ba - 71.6% Ba + 11.2% 137Ba + 7.8% 136Ba + 6.6% 135 Ba + 2.4% 134 Ba
Symbol
Ba
Formula
$Ba$
Charge
0
Atomic number Z
56
Molar mass
137.327 $g/mol$
State STP
solid
Electronegativity
0.89
Isotope mixture type
terrestrial abundance
Type K L1 L2 L3 M1 M5
Energy (keV) 37.4406 5.9888 5.6236 4.247 1.293 0.7805