Promethium

[Pm₂(O)₃]

Formula Unicode styled: 
[Pm₂(O)₃]
Compound name(s): 
dipromethium-trioxide
Central atom: 
Attached groups: 
Charge on central atom: 
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Pm«V3C6OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Pm(Po)(electride)]

Formula Unicode styled: 
[Pm(Po)electride]
Compound name(s): 
Polonido-promethium|promethium polonide
Central atom: 
Charge on central atom: 
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Pm«V3C6OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Pm(μ₆-N)]

Formula Unicode styled: 
[Pm(μ₆-N)]
Compound name(s): 
Nitrido-promethium
promethium nitride
Central atom: 
Attached groups: 
Charge on central atom: 
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Pm«V3C6OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Pm(Br)₃]

Formula Unicode styled: 
[Pm(Br)₃]
Compound name(s): 
promethium tribromide|promethium(III) bromide|promethium bromide
Central atom: 
Attached groups: 
Charge on central atom: 
Compound type: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
Oxidation Number (ON) (Roman numerals): 
Coordination Number (CN, sum of attached group denticities): 
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
Summary of calculated classifications: 
Pm«V3C6OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class):