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Metal > ZincZn - Zinc Usually a grey colored transition metal, zinc was known in ancient Asia and early Europe. It can be easilly alloyed with copper and other metals and so has found wide metalurgical use. Lately zinc gluconate has become popular as a cold remedy. Our students explore the chemical activity and electrochemical properties of zinc. Atomic number - 30 Density g/mL 7 .14 Atomic weight u 65 .38 Melting point K 692 .73 Bonding radius A 1 .25 Boiling point K 1180 Atomic radius A 1 .53 Heat of vaporization kJ/mol 115 .3 Ionization Potential V 9 .394 Heat of fusion kJ/mol 7 .322 Electronegativity - 1 .65 Specific heat J/gK 0 .39 The oxide is amphoteric. Crystal are hexagonal. Electron config. : [Ar] 3d10 4s2
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