Flashcards in Electrons and bonding Deck (11):
Ability to attract bonded electron in covalent bond
Whats the electron pair repulsion theory?
Electrons repel one another as far as possible
Shape depends on electron pairs
Tetra - 109.5
Trig bipyradmidal - 90 and 120
Octa - 120
Pyramidal - 107
Angular - 104.5
Define polar bond
Covalent bond between two atoms with different electronegativites in which bonded electron pair is drawn closer to more electronegative atom
Which shapes cancel dipoles out?
Trig planar, tetra, tri by, octa
Define permanent d-d
Between polar molecules
Define induced d-d
Weakest and in all
How is induced d-d formed?
Movement of electron= instanstaneous dipole which induces another dipole in neighbouring atom
attraction between temporary induced dipoles = dipole -dipole
Define H bond
Bonded to lone pair on N, F and O