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Metals, Non-metals and Metalloids (METALS (Examples (Aluminum, Gallium,…
Metals, Non-metals and Metalloids
METALS
Chemical Properties
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The absence of a layer of atoms in its densely packed structure, for example, enables a metal to deform plastically, and prevents it from being brittle.
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Applications
Alluminum
used in a huge variety of products including cans, foils, kitchen utensils, window frames, beer kegs and aeroplane parts
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Lead
used for car batteries, pigments, ammunition, cable sheathing, weights for lifting, weight belts for diving
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NON-METALS
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Applications
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Sulfur
black gunpowder, matches, and fireworks; in the vulcanization of rubber; as a fungicide, insecticide, and fumigant
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METALLOIDS
Chemical properties
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have electronic structures intermediate between the nearly empty outer electron shells of the typical metals and the nearly filled electron shells of the nonmetals.
hey have enough empty electron orbitals (pathways within the shells) into which electrons can be moved to conduct electric current.
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Application
Germanium
used to make transistors for use in electronic devices. Germanium is also used to create alloys and as a phosphor in fluorescent lamps.
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REFERENCES
Addison, C.C. and Sowerby, D.B. (1972). Main Group Elements: Groups V and VI. Butterworths, London. ISBN 0-8391-1005-7.
Edwards, P.P. and Sienko, M.J. (1983). "On the Occurrence of Metallic Character in the Periodic Table of the Elements". Journal of Chemical Education, vol. 60, no. 9, pp. 691–6.
Vernon R.E. (2013). "Which Elements Are Metalloids?". Journal of Chemical Education, vol. 90, no. 12, pp. 1703–1707. doi:10.1021/ed3008457
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