write a note on covalent ionic resonance
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The two extreme cases of chemical bonds are: Covalent bond: bond in which one or more pairs of electrons are shared by two atoms. Ionic bond: bond in which one or more electrons from one atom are removed and attached to another atom, resulting in positive and negative ions which attract each other.
Explanation:
the atoms of iron are held together by ionic bonds. iron conducts electricity because iron atoms move through the solid. iron expands when heated because the atoms get bigger. iron metal is silver because iron atoms are silver.
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