ATOMIC ORBITALS, E CONFIGURATION AND P. TABLE Flashcards
How many e can orbitals hold
2
What does quantum number n tell us
main energy level
What does quantum number l tell us
shape of subshell
(values from 0 to n-1)
What does magnetic quantum number m say
orientation of orbital
(-l to +l)
What does quantum number s tell us
spin
What is the aufbau principle
electrons fill orbitals in order of increasing energy
Define Hund’s rule
when degenerate orbitals are available, electrons fill each singly,
keeping their spins parallel before spin pairing starts
What is the Pauli Exclusion principle
opposite spins
What does it mean if orbitals are degenerate
same energy
What do stable electron configurations suggest
higher ionisation energy
How many electron pairs does a LINEAR structure have
2
How many electron pairs does a TRIGONAL PLANAR structure have
3
How many electron pairs does a TETRAHEDRAL structure have
4
How many electron pairs does a TRIGONAL BIPYRAMIDAL structure have
5
How many electron pairs does a OCTAHEDRAL structure have
6
What order does electron repulsion strength decrease in
non/non bonding
non/bonding
bonding/bonding
