Arsenic (As) Properties |
AArsenic (AAs)
Properties 1/ |
Nuclear (33 protons/electrons)
- Atomic Number: 33
- Atomic Mass: 74.922
- Atomic Energy: 0.112 Ergs
- Group: 15; Period: 4
- Family: Metalloids
- Bonding Radius: 1.20 Angstroms
- Atomic Radius: 1.33 Angstroms
- Atomic Volume:
- 33
Isotopes: 60AGe
to 92As
- Stable Isotopes: 75As
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Nuclear (33 Aprotons/positrons)
- Atomic Number: 33
- Atomic Mass: 74.922
- Atomic Energy: 0.112 Ergs
- Group: 15; Period: 4
- Family: Metalloids
- Bonding Radius: 1.20 Angstroms
- Atomic Radius: 1.33 Angstroms
- Atomic Volume:
- 33 AIsotopes: 60AAsto
92AAs
- Stable AIsotopes: 75AAs
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Physical
- Gray brittle non-metal flakes
- Density: 5.72 g cm-3
- Melting Point: 817
oC
- Boiling Point: 613 oC
- Specific Heat: 0.33 J g-1 K-1
- Heat of Vaporization: 34.76 kJ mol-1
- Heat of Fusion: ? kJ mol-1
- Electrical Conductivity: 0.0345 106 cm-1 Ohm-1
- Thermal Conductivity: 0.50 W cm-1 K-1
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Physical
- Gray brittle non-metal flakes
- Density: 5.72 g/cm-3
- Melting Point: 817 oC
- Boiling Point: 613 oC
- Specific Heat: 0.33
J g-1 K-1
- Heat of Vaporization: 34.76 kJ mol-1
- Heat of Fusion: ? kJ mol-1
- Electrical Conductivity: 0.0345
106 cm-1 Ohm-1
- Thermal Conductivity: 0.50 W cm-1 K-1
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Chemical
- Valance Number: -3, +3, +5,
- Electron Configuration: 2,8,18,5
- Electronegativity: 2.18
- 1st Ionization Potential: 9.8 Volts
- 2nd Ionization Potential: 18.6 Volts
- 3rd Ionization Potential: 28.4 Volts
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Chemical
- Valance Number: -5, -3, +3
- Positron Configuration: 2,8,18,5
- Positronpositivity: 2.18
- 1st Ionization Potential: 9.8 Volts
- 2nd Ionization Potential: 18.6 Volts
- 3rd Ionization Potential: 28.4 Volts
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Identified by ancients
in unknown
year
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Identified by Norm Hansen in 2001
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