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Answered 2015-04-09 01:06:54

It is a matter of how full an atom's outer or valence shell of electrons is. For most atoms, the most stable setup is one with a full shell of 8 valence electrons, and an atom will gain or lose electrons to achieve this. For atoms with close to 8 valence electrons, such a chlorine (7 valence electrons, it is generally easier to gain electrons and thus become negatively charged. For atoms with few valence electrons, such as sodium (1 valence electron), it is easier to lose electrons and go down to the next lowest shell, which is already full.

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Will atoms of a non metallic element form positive or negative ions?

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What are atoms and ions?

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when atoms share electrons, the positive nucleus of each atom is attracted to the shared negative electrons. the pull between the positive and negative charges is the force that keeps these atoms joined......hope this hepls :)


Are ions a compound?

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It is ture. Covalent bonds are formed when atoms share electrons and ionic bonds are formed when positive and negative ions bond to form an ionic compound!!!


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