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30
Zn
65.38
Zinc |
Appearance & Characteristics | Reactions |
Other Forms Radius | Conductivity | Abundance
General:
| Name: Zinc | Symbol: Zn |
| Group: Trans. Met. | Atomic weight: 65.38 |
| Density @ 293 K: 7.14 g/cm3 | Atomic volume: 9.2 cm3/mol |
| Group: Trans. Met. | Discovered: 1600 |
States
| State (s, l, g): solid | |
| Melting point: 692.78 K | Boiling point: 1180 K |
| Heat of fusion: 7.322 kJ/mol | Heat of vaporization: 115.30 kJ/mol |
Energies
| 1st ionization energy: 906.4 kJ/mole | |
| Electronegativity: 1.65 | 2nd ionization energy: 1733.2 kJ/mole |
| Electron affinity: kJ/mole | 3rd ionization energy: 3832.6 kJ/mole |
| Specific heat: 0.39 J/gK | Heat atomization: 131 kJ/mole atoms |
Oxidation & Electrons
| Shells: 2,8,18,2 | Electron configuration: [Ar] 3d10 4s2 |
| Minimum oxidation number: 0 | Maximum oxidation number: 2 |
| Min. common oxidation no.: 0 | Max. common oxidation no.: 2 |
Appearance & Characteristics
| Structure: distorted hcp Structure | Color: silvery |
| Uses: batteries, galvanizing | Toxicity: |
| Hardness: 2.5 mohs | Characteristics: brittle |
Reactions
| Reaction with air: vigorous, => ZnO | |
| Reaction with 6 M HCl: mild, => H2, ZnCl2 | Reaction with 6 M HCl: mild, => H2, ZnCl2 |
| Reaction with 15 M HNO3: vigorous, => Zn(NO3)2, NOx | Reaction with 6 M NaOH: mild, => [Zn(OH)4]2-, H2 |
Other Forms
| Number of isotopes: 5 | Hydride(s): ZnH2 |
| Oxide(s): ZnO | Chloride(s): ZnCl2 |
Radius
| Ionic radius (2- ion): pm | Ionic radius (1- ion): pm |
| Atomic radius: 134 pm | Ionic radius (1+ ion): pm |
| Ionic radius (2+ ion): 88 pm | Ionic radius (3+ ion): pm |
Conductivity
| Thermal conductivity: 116 J/m-sec-deg | |
| Electrical conductivity: 169.033 1/mohm-cm | Polarizability: 6.4 A^3 |
Abundance
| Source: Sphalerite (sulfide) | |
| Rel. abund. solar system: 3.100 log | Abundance earth's crust: 1.79 log |
| cost, pure: 3.7 $/100g | cost, bulk: 0.12 $/100g |
