O=C(NH₂)C₅H₄N (isonicotinamido-O)

[Tb{O=C(NH₂)C₅H₄N}₂(OH₂)₆]³⊕

Formula Unicode styled: 
[Tb{O=C(NH₂)C₅H₄N}₂(OH₂)₆]³⊕
Compound name(s): 
Hexa-aqua-bis(isonicotinamide)-terbium(3+)
Central atom: 
Terbium
Attached groups: 
O=C(NH₂)C₅H₄N (isonicotinamido-O)
OH₂ (aqua)
Charge on central atom: 
3
Compound type: 
Molecular
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: 24
Summary of calculated classifications: 
Tb«V3C8OIIIE24B8Z0X0L8»3⊕
[MLXZ]𝘲 class: 
[ML8]3+
MLXZ class (ENC, equivalent neutral class): 
MX3L5