Metallic Bonding: Flashcards
What happens during metallic bonding?
= when metalls react they loose their outer electron to form a sea of delocalised electrons and a cation
= when they react they arrange into a giant metallic lattice
What are the bonds between the metallic atoms are like?
= strong attraction between the cations and the delocalised electrons
= mettalic bonds
What is the structure of the giant mettalic lattice like?
= cations are fixed into place
= delocalised electrons are free to move
=
Why can metals conduct heat and electricty?
= delocalised electrons can carry the charge as they are attracted to the positive pole
Why do metals have a high melting and boiling point?
= strength of metallic bonds
= takes energy to overcome the attraction
=
Why are metals insoluable?
= reacts with the water rather than disoslving
What are valence electrons?
How many electrons are delocalised from each atom
What is the cooridination number?
= How many ions are surrounded by 1 singular ion
What is the coordination number usually for metals?
= 8 or 12
