Atom
Name
Helium cation
IUPAC name
Helium(1+) cation
InChI
InChI=1S/He/q+1
InChI key
QLNXTEZOQCZJBA-UHFFFAOYSA-N
CAS number
14234-48-1
Comments
natural He+, 99.9999% 4He+
Symbol and fundamental properties
Symbol
He+
Formula
$He^+$
Charge
1
Atomic number Z
2
Molar mass
4.002602 $g/mol$
State STP
gas
Isotope mixture type
terrestrial abundance
Isotopes
  IUPAC Name A Mole fraction
Helium-3(1+) cation 3 1.34e-06
Helium-4(1+) cation 4 0.99999866