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Zinc

30
Zn
65.38
Zinc
 General | States | Energies | Oxidation & Electrons | 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): s
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 6M HCl: mild, =>H2, ZnCl2 reaction with 6M HCl: mild, =>H2, ZnCl2
reaction with 15M HNO3: vigorous, =>Zn(NO3)2, NOx reaction with 6M 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