Page 6 - E-Science Prep1 2024-2025 t2 Unit1_Neat - Copy
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Metallic bond
The attraction force between positive metal ion & the negative
valence electron cloud which surrounds them.
? The atoms of solid metals are gathered in an arrangement (Metallic
crystal lattice) where they exist in lattice.
Cations are surrounded by a cloud free moving valence electron.
? The metallic bond is responsible for the metal’s hardness & high
melting point
? The strength of metallic bond increases with increasing the number of
the valence electrons of the metal, increasing its hardness & its melting
point is higher.
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Second Term
