Metallic Bonding (Grade 10 NSC Matric Physical Sciences): Flashcards
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Metallic bonding definition
Metallic bonding definition
Electrostatic attraction between nuclei & delocalised electrons
Delocalised electrons
Delocalised electrons
Electrons free to move throughout metal, not bound to one nucleus
Sea of delocalised electrons
Sea of delocalised electrons
Mobile electrons flowing freely around all metal nuclei
Why metals are shiny
Why metals are shiny
Delocalised electrons absorb & re-emit light energy
Why metals conduct electricity
Why metals conduct electricity
Delocalised electrons are free to move & carry electrical current
Why metals conduct heat
Why metals conduct heat
Delocalised electrons & packed nuclei transfer thermal energy
Why metals have high melting points
Why metals have high melting points
Metallic bonds are strong, require lots of energy to break
Why metals have high density
Why metals have high density
Metal nuclei are packed tightly together in crystal structure
Crystal lattices in metals
Crystal lattices in metals
Regular, repeating patterns showing metal atom arrangement
What holds metal atoms together
What holds metal atoms together
Mobile electrons create attraction between atoms