=CMe (methylcarbonium⊕)

[O(=CMe)]⊕

Formula Unicode styled: 
[O(=CMe)]⊕
Compound name(s): 
Methyloxocarbonium(1+)
Central atom: 
Oxygen
Attached groups: 
=CMe (methylcarbonium⊕)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 1
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
O«V2C1O-IIE8B2Z0L0X2»
[MLXZ]𝘲 class: 
[MX2]
MLXZ class (ENC, equivalent neutral class): 
MX2