Iodine (I) Properties |
AIodine (AI)
Properties 1/ |
Nuclear (53 protons/electrons)
- Atomic Number: 53
- Atomic Mass: 126.904
- Atomic Energy: 0.189 Ergs
- Group: 17 ; Period: 5
- Family: Halogens
- Bonding Radius: 1.33 Angstroms
- Atomic Radius: 1.32 Angstroms
- Atomic Volume: 25.74 cm3mol-1
- 37
Isotopes: 108I to 144I
- Stable Isotopes: 127I
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Nuclear (53 Aprotons/positrons)
- Atomic Number: 53
- Atomic Mass: 126.904
- Atomic Energy: 0.189 Ergs
- Group: 17; Period: 5
- Family: Halogens
- Bonding Radius: 1.33 Angstroms
- Atomic Radius: 1.32 Angstroms
- Atomic Volume: 25.74 cm3mol-1
- 37 AIsotopes: 108AI
to 144AI
- Stable AIsotopes: 127AI
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Physical
- solid form: shiny grayish-black flakes;
gas: violet
- Density: 4.93 g cm-3
- Melting Point: 113.5 oC
- Boiling Point: 184 oC
- Specific Heat: 0.214 J g-1 K-1
- Heat of Vaporization: 20.75 kJ mol-1
- Heat of Fusion: 7.82 kJ mol-1
- Electrical Conductivity: 8.0 10-6 cm-1 Ohm-1
- Thermal Conductivity: 0.00449 W cm-1 K-1
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Physical
- solid form: shiny grayish-black flakes;
gas: violet
- Density: 4.93 g/cm-3
- Melting Point: 113.5 oC
- Boiling Point: 184 oC
- Specific Heat: 0.214 J g-1 K-1
- Heat of Vaporization: 20.75 kJ mol-1
- Heat of Fusion: 7.82 kJ mol-1
- Electrical Conductivity: 8.0 10-6 cm-1 Ohm-1
- Thermal Conductivity: 0.00449 W cm-1 K-1
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Chemical
- Valance Number: -1, +1, +5,+ 7
- Electron Configuration: 2,8,18,18,7
- Electronegativity: 2.66
- 1st Ionization Potential: 10.45 Volts
- 2nd Ionization Potential: 19.1 Volts
- 3rd Ionization Potential: 33.0 Volts
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Chemical
- Valance Number: +1, -1,-5, -7
- Positron Configuration: 2,8,18,18,7
- Positronpositivity: 2.66
- 1st Ionization Potential: 10.45 Volts
- 2nd Ionization Potential: 19.1 Volts
- 3rd Ionization Potential: 33.0 Volts
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Identified by Bernard
Courtois
France in 1804
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Identified by Norm Hansen in 2001
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