Hybridisation Flashcards
Define VSEPR
Electron pair repel each other and tend to place themselves as far away as possible from each other to maximise separation
Steric Number
The sum of the number of atoms bonded to a central atom and the number of lone pairs formed by its nonbonding valance electrons
Non bonding pairs
they repel the neighbouring valance electrons more than bonding part, this causing a distortion in the expected geometry
Define hybridisation
the process through which atomic or bitals combme to generate new hybrid orbitals
What is the arrangement of valance dectrous predicted by
The VSEPR theory
What does the VSEPR occur as a result of
It occurs as a result of hybridisation of atomic orbitals
What does the 4 Sp3 orbitals on Carbon characterised by
They are characterised by 2 lobes of different size and are oriented in space to form a tetrahedral shape
What is the 1st scenario possible for hybrid or bitals
All S& p orbitals in the second shell are mixed to generate 4 new hybrid orbitals
What is the 2nd scenario of the formation of hybridor bitals
One s orbitals and 2 p orbitals in the second shell are mixed to generate 3 new hybrid orbitals
What is the 3rd scenario in the formation of hybrid orbitals
One S orbital and one p orbital in the second Shell are mixed to generate 2 new hybrid orbitals
how many orbitals can carbon generate
Carbon can mix its 2s and 2p orbitals to generate up to 4 new orbitals that do not look anything like the orbitals they originated from.
how many covalent bonds can carbon form
With 4 unpaired electrons in its external shell, carbon now has a valency of 4 and can share its external electrons with other atoms to form 4 covalent bonds.
what shape does sp3 orbitals have
The four sp3 orbitals on carbon are characterised by two lobes of different size and are oriented in space to form a tetrahedral shape
