Quantum View of Atom

Wave Particle Duality
In subatomic level, energy and matter cannot be distinguished. They have both light and particle properties.
light consists of particles called photon. Photon travels as wave.
Matter consists of atom and subatomic particles. Subatomic particles such as electrons travel or move as wave.
Bohr's model
Bohr proposed that atom has energy levels as circular orbits. Electrons move as wave in a specific energy levels. Electrons can transfer to different energy levels when they lose or gain energy.
Each energy level has specific quantum number (n) starts from 1,2,3...
Erwin Schrödinger used Quantum Mechanics to explain the energy state in the hydrogen atom.
The equation is called wave function. A specific wave function is often called an orbital.
Quantum number and atomic orbitals
the principal quantum number (n)
n = 1,2,3... small n, small size, close to nucleus, low energy
the orbital angular momentum quantum number (l)
give different shape of orbital
s p d f orbitals
the magnetic quantum number (ml)
give different orientation of orbital
the spin quantum number (ms)
represent spin of electron. Only two possible values : +1/2 and -1/2

	Erstellt von Chuleeporn Thanomsilp vor etwa 10 Jahre

	Zu Notiz kopiert von Chuleeporn Thanomsilp vor etwa 10 Jahre

University first year GeneralChemistry1 (Atomic Structure) Notiz am Atomic Structure - created from Mind Map, erstellt von Chuleeporn Thanomsilp am 20/05/2014.