Towards Quantum Mechanical Model Of An Atom
Chapter Name : Structure Of Atom |
Sub Topic Code : 102_11_02_05_01 |
Topic Name : Towards Quantum Mechanical Model Of An Atom |
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Sub Topic Name : Dual Behavior Of Matter |
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Introduction
Every matter has
particle as well as wave properties in universe. According to De Broglie every
matter has momentum as well as wavelength.
Pre-Requisites:
Idea about Wave Motion, Wavelength, Momentum, diffraction
Activity:
Light wave is the
simplest example and every matter show dual behavior.
Real Life Question:
Is light a particle
or a wave?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Wavelength | Wavelength is the distance between identical points between two successive waves. |
| Diffraction | The process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge, typically accompanied by interference between the wave forms produced. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Electron microscope | Uses the wave-particle duality principle |
Real life uses :
Wave–particle duality
is exploited in electron microscopy, where the small wavelengths associated with the
electron can be used to view objects much smaller than what is visible using
visible light
Places to visit :
Chemistry lab and
surrounding environment.
Practical examples around us
| Examples | Explainations |
|---|---|
| Light Wave | It has photon (wave property) as well as particle nature. |
What you learn in Theory:
Every matter have
wave and particle properties in universe.
What you learn in Practice:
Light behaves both as
particle and wave