Metallic Bonding
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Metallic Bonding and Properties of Metallic Compounds, Exams of Chemistry
The concept of metallic bonding, where two metals with low ionization energies and electronegativities form bonds by losing electrons and having delocalized valence electrons. The properties of metallic compounds, including malleability, ductility, conductivity, shininess, and solidity at room temperature, are discussed.
Typology: Exams
2021/2022
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Metallic Bonding
What is a metallic bond?
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Occurs when both atoms have low ionizationenergies and low electronegativities and will loseelectrons easily (i.e. 2 metals)
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In metallic bonding, positive metal ions arearranged with valence electrons delocalizedaround them.
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Since the electrons are delocalized, they aremobile and able to move throughout the metalstructure.
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Solids at room temperature (except mercury)due to the strong bonds (intermolecular andintramolecular forces are the same).
They exhibit the photoelectric effect which iselectron emission caused by heat or light. Thisoccurs when the frequency and therefore theenergy of light striking a metal is sufficient toovercome the attractive forces and an electronescapes the metal decreasing the energy of thephoton.
metal
electrons escaping thesurface of the metal