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property of electrical conductivity is mainly because each atom exerts only a loose hold on its outermost electrons , called the valence electrons). thus, a pure metal may be thought of as a lattice of positively charged ions (cations) surrounded by a cloud of delocalized electrons. most metals are chemically
the transition metals —such as iron , copper , zinc , and nickel —take much longer to oxidize. for example, potassium burns in seconds, but iron rusts gradually over a long period of time, depending on the prevailing environmental conditions. other metals—such as palladium , platinum , and gold —do not...
https://www.newworldencyclopedia.org/entry/Metal
property of electrical conductivity is mainly because each atom exerts only a loose hold on its outermost electrons , called the valence electrons). thus, a pure metal may be thought of as a lattice of positively charged ions (cations) surrounded by a cloud of delocalized electrons. most metals are chemically
the transition metals —such as iron , copper , zinc , and nickel —take much longer to oxidize. for example, potassium burns in seconds, but iron rusts gradually over a long period of time, depending on the prevailing environmental conditions. other metals—such as palladium , platinum , and gold —do not...
https://www.newworldencyclopedia.org/entry/Metal