(Se)₄ (tetraseleno X₈L Ⓢ)

[Mo(Se)₄]²⊖

Formula Unicode styled: 
[Mo(Se)₄]²⊖
Compound name(s): 
tetraseleno-molybdenum(2-)
Central atom: 
Charge on central atom: 
-2
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: 
Mo«V6C4OVIE18B9Z0X8L1»2⊖
[MLXZ]𝘲 class: 
[MX8L1]2-
MLXZ class (ENC, equivalent neutral class): 
MX6L3

[Nb(Se)₄]³⊖

Formula Unicode styled: 
[Nb(Se)₄]³⊖
Compound name(s): 
tetraselenidoniobium(3-)
Central atom: 
Charge on central atom: 
-3
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: 
Nb«V5C4OVE18B9Z0X8L1»3⊖
[MLXZ]𝘲 class: 
[MX8L1]3-
MLXZ class (ENC, equivalent neutral class): 
MX5L4

[Ta(Se)₄]³⊖

Formula Unicode styled: 
[Ta(Se)₄]³⊖
Compound name(s): 
tetraselenotantalum(3-)
Central atom: 
Charge on central atom: 
-3
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: 
Ta«V5C4OVE18B9Z0X8L1»3⊖
[MLXZ]𝘲 class: 
[MX8L1]3-
MLXZ class (ENC, equivalent neutral class): 
MX5L4

[W(Se)₄]²⊖

Formula Unicode styled: 
[W(Se)₄]²⊖
Compound name(s): 
tetraseleno-tungsten(2-)
Central atom: 
Charge on central atom: 
-2
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: 
W«V6C4OVIE18B9Z0X8L1»2⊖
[MLXZ]𝘲 class: 
[MX8L1]2-
MLXZ class (ENC, equivalent neutral class): 
MX6L3