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ATOMIC STRUCTURE & INTERATOMIC BONDING - Coggle Diagram
ATOMIC STRUCTURE & INTERATOMIC BONDING
Electrons In Atoms
Atomic Models
BOHR: Assume electrons to be particles orbiting the nucleus in discrete paths
WAVE MECHANICS: consider them to be wavelike and trat electron position in terms of a probability distribution
Energies of electrons are quantized- only specific values of energy are allowed
Foue electron quantum numbers - n,l,m1 and m3
Pauli Exclusion Principle- each electrons state can accomodate no more tan two electrons, which must have opposite spins
Bonding Forces and Energies
Bonding force and boding energy are related to each other
Attractive, Repulsive & net energies for two atoms or ions depend on interatomic separation
The equilibrium separation corresponds to the value at zero force
The bonding energy corresponds to the energy value at the minimum curve
Primary Interatomic Bonds
Ionic bonds- electrically charged ions are formed bythe transference of valence electrons from one atom to another
Ploymers and some ceramic materials covalently bond
% IC of abond between two elements (A & B) depends on the their electronegativities (X's)
Secondary Bonding or Van Der Waals Bonding
Result from attractive forces between electric dipoles, which may be induced or permanent
Hydrogen bonding- highly polar molecues from when hydrogen covalently bonds to a nonmatellic elements such as fluorine
Important Table
