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<p>[QUOTE=&quot;desertgem, post: 3170348, member: 15199&quot;]Because metallic bonding is different than the usual covalent ( such as organic ) , ionic ( such as some minerals), in that the nuclei are more together in the center&nbsp; and the electron cloud is on the outside ( yes, I cheated and lied a little in the sentence, as I am trying to put it into PLAIN ENGLISH for the older generations), and it is the electrons that give the color effect to our retinas.[/QUOTE]</p><p><br /></p>

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