<div>Hi, all users of wien2k,</div>
<div> What physical performances can be indicated by the electron charge density (valence electron charge density and charge density difference)? In addition, what is the relationship between the bonding type (ionic bond, covalent bond and metallic bond) and electron charge density? Thank you for your time.
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<div> Best regards.</div>
<div> Sincerely,</div>
<div> Z.J.</div>