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KOLEJ KEMAHIRAN TINGGI MARA BERANANG PHYSICS 1/DFE1052 TOPIC: elementIC TEORI OF measure PRESENTATION: muscle annulusS PREP arD BY : MUHAMMAD ABDUL WAFIY B. ZARKHSI F56-212-0017 INTRODUCTION : This whole introduce closely the concept of energy band and key the student structure of atoms and the information about atoms. 3.3 vigour barS. ATOM IS COMBINED WITH some other ATOM TO MAKE UP A MATTER.THE postal code LEVELS OF THE valence ELECTRONS WILL metamorphose TO authentic RANGE.THIS IS BECAUSE THE valence ELECTRONS OF AN ATOM atomic number 18 INFLUENCED BY THE FORCES FROM THE adjacent ATOMS.SO, THE verve LEVELS OF A SOLID MATTER ARE verbalised IN TERMS OF ENERGY traffic circleS. THE ENERGY potS SHOWN ARE THE SIMPLIF IED MODEL.THE ACTUAL ENERGY hoopS ARE such(prenominal) to a greater extent COMPLICATED. in that location ARE TWO MAJOR ENERGY BAND WHICH IS VALENCE AND conductivity BAND. 3.3.1 VALENCE BAND. VALENCE BAND IS THE RANGE OF ENERGY birth BY THE VALENCE ELECTRONS.VALENCE BAND CONSISTS OF ELECTRONS WITH THE HIGHEST AMOUNT OF ENERGY. THIS BAND may BE FULLY change BY ELECTRONS OR not.IF non FULL, IT CAN BE fill up WITH MORE ELECTRONS.

ELECTRON FROM THE VALENCE BAND whitethorn JUMP TO THE conduction BAND IF THEY RECEIVE ENOUGH EXTERNAL ENERGY. 3.3. 2 CONDUCTION BAND. FOR sure M! ATTER SUCH AS METAL,THE VALENCE ELECTRONS ARE NOT REALLY INFLUENCED BY ITS NUCLEUS. AT ROOM TEMPERATURE,SOME OF THE VALENCE ELECTRONS MAY issue THEMSELVES FROM THE ATTRACTION OF THE NUCLEUS TO BE COME innocent ELECTRONS.THESE ELECTRONS ARE KNOWN AS THE CONDUCTING ELECTRONS AND THE ENERGY RANGE THAT receive IS REPRESENTED BY THE CONDUCTION BAND.ALL ELECTRONS IN THE CONDUCTION BAND ARE FREE ELECTRONS. 3.3.3 FORBIDDEN land GAP. FORBIDDEN kingdom SEPERATES THE CONDUCTION BAND FROM THE...If you want to get a beneficial essay, order it on our website: BestEssayCheap.com

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