Hydrogen

[H(C≡CH)]

Formula Unicode styled: 
[H(C≡CH)]
Compound name(s): 
Ethyne|Acetylene
Central atom: 
Hydrogen
Attached groups: 
C≡CH (ethynyl)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 1
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 2
Summary of calculated classifications: 
H«V1C1OIE2B1Z0L0X1»
[MLXZ]𝘲 class: 
[MX1]
MLXZ class (ENC, equivalent neutral class): 
MX1

[H(AsMe₃)]⊕

Formula Unicode styled: 
[H(AsMe₃)]⊕
Compound name(s): 
Trimethylarsonium(1+)
Central atom: 
Hydrogen
Attached groups: 
AsMe₃ (trimethylarsane)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (-I)
Coordination Number (CN, sum of attached group denticities): 
CN: 1
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 2
Summary of calculated classifications: 
H«V1C1O-IE2B1Z0X0L1»⊕
[MLXZ]𝘲 class: 
[ML1]+
MLXZ class (ENC, equivalent neutral class): 
MX1

catena–1D-[H(IO₄-κO)]

Formula Unicode styled: 
catena–1D-[H(IO₄-κO)]
Compound name(s): 
Periodic acid
Central atom: 
Hydrogen
Attached groups: 
IO₄ (periodato-κO)
Charge on central atom: 
0
Compound type: 
Catena-1D
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 1
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 2
Summary of calculated classifications: 
H«V1C1OIE2B1Z0L0X1»
[MLXZ]𝘲 class: 
[MX1]
MLXZ class (ENC, equivalent neutral class): 
MX1