O (oxo X₂)

[Cr(Me)(O)₂(Cp)]

Formula Unicode styled: 
[Cr(Me)(O)₂(Cp)]
Compound name(s): 
(η-Pentamethyl-cyclopentadienyl)-methyl-dioxo-chromium
Central atom: 
Chromium
Attached groups: 
Me (methyl)
O (oxo X₂)
Cp (η⁵-cyclopentadienyl)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (VI)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 16
Summary of calculated classifications: 
Cr«V6C6OVIE16B8Z0X6L2»
[MLXZ]𝘲 class: 
[MX6L2]
MLXZ class (ENC, equivalent neutral class): 
MX6L2

[Cf₂(O)₃]

Formula Unicode styled: 
[Cf₂(O)₃]
Compound name(s): 
Californium sesquioxide|Dicalifornium hexaoxide
Central atom: 
Californium
Attached groups: 
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Cf«V3C7OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Cf₂(O)₂(S)]

Formula Unicode styled: 
[Cf₂(O)₂(S)]
Compound name(s): 
dioxido-sulfido-dicalifornium
Central atom: 
Californium
Attached groups: 
O (oxo X₂)
S (thio)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Cf«V3C7OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Ac(F)(O)]

Formula Unicode styled: 
[Ac(F)(O)]
Compound name(s): 
Actinium oxide fluoride
Central atom: 
Actinium
Attached groups: 
F (fluoro)
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 8
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Ac«V3C8OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Ac(Cl)(O)]

Formula Unicode styled: 
[Ac(Cl)(O)]
Compound name(s): 
Actinium oxide chloride
Central atom: 
Actinium
Attached groups: 
Cl (chloro)
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 9
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Ac«V3C9OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Ac(Br)(O)]

Formula Unicode styled: 
[Ac(Br)(O)]
Compound name(s): 
Actinium oxide bromide
Central atom: 
Actinium
Attached groups: 
Br (bromo)
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 9
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Ac«V3C9OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Ac₂(O)₃]

Formula Unicode styled: 
[Ac₂(O)₃]
Compound name(s): 
diactinium trioxide
actinium sesquioxide
Central atom: 
Actinium
Attached groups: 
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Ac«V3C7OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Bk₂(O)₃]

Formula Unicode styled: 
[Bk₂(O)₃]
Compound name(s): 
diberkelium trioxide|berkelium sesqioxide
Central atom: 
Berkelium
Attached groups: 
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Bk«V3C6OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Cm(O)]

Formula Unicode styled: 
[Cm(O)]
Compound name(s): 
curium monoxide
Central atom: 
Curium
Attached groups: 
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Cm«V2C6OII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Cm(O)₂]

Formula Unicode styled: 
[Cm(O)₂]
Compound name(s): 
curium dioxide
Central atom: 
Curium
Attached groups: 
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 8
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Cm«V4C8OIV»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Cm₂(O)₃]

Formula Unicode styled: 
[Cm₂(O)₃]
Compound name(s): 
dicurium trioxide
Central atom: 
Curium
Attached groups: 
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Cm«V3C7OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Am(O)₂]

Formula Unicode styled: 
[Am(O)₂]
Compound name(s): 
americium dioxide
Central atom: 
Americium
Attached groups: 
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 8
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Am«V4C8OIV»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Am(O)]

Formula Unicode styled: 
[Am(O)]
Compound name(s): 
americium oxide
Central atom: 
Americium
Attached groups: 
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Am«V2C6OII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Am(Br)(O)]

Formula Unicode styled: 
[Am(Br)(O)]
Compound name(s): 
Americium oxide bromide
Central atom: 
Americium
Attached groups: 
Br (bromo)
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 9
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Am«V3C9OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Am(I)(O)]

Formula Unicode styled: 
[Am(I)(O)]
Compound name(s): 
Americium oxide iodide
Central atom: 
Americium
Attached groups: 
I (iodo)
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 8
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Am«V3C8OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Am(Cl)(O)]

Formula Unicode styled: 
[Am(Cl)(O)]
Compound name(s): 
Americium oxide chloride
Central atom: 
Americium
Attached groups: 
Cl (chloro)
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 9
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Am«V3C9OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Pa(O)₂]

Formula Unicode styled: 
[Pa(O)₂]
Compound name(s): 
protactinium dioxide|protactinium(IV) oxide|protactinium oxide
Central atom: 
Protactinium
Attached groups: 
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 8
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Pa«V4C8OIV»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Pa(Cl)₅(O)]²⊖

Formula Unicode styled: 
[Pa(Cl)₅(O)]²⊖
Compound name(s): 
oxopentachloro-protactinium(2-)
Central atom: 
Protactinium
Attached groups: 
Cl (chloro)
O (oxo X₂)
Charge on central atom: 
-2
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 14
Summary of calculated classifications: 
Pa«V5C6OVE14B7Z0L0X7»2⊖
[MLXZ]𝘲 class: 
[MX7]2-
MLXZ class (ENC, equivalent neutral class): 
MX5L2

[Es(Cl)(O)]

Formula Unicode styled: 
[Es(Cl)(O)]
Compound name(s): 
Einsteinium monooxide monochloride
Central atom: 
Einsteinium
Attached groups: 
Cl (chloro)
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 9
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Es«V3C9OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Es₂(O)₃]

Formula Unicode styled: 
[Es₂(O)₃]
Compound name(s): 
dieinsteinium trioxide
Central atom: 
Einsteinium
Attached groups: 
O (oxo X₂)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 6
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Es«V3C6OIII»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class):