Quantum Mechanical Model Of Atom
Chapter Name : Structure Of Atom |
Sub Topic Code : 102_11_02_06_01 |
Topic Name : Quantum Mechanical Model Of Atom |
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Sub Topic Name : Quantum Mechanical Model Of Atom |
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Introduction
• Microscopic objects, such as electrons, have both wave-like and particle-like behaviour and are thus described by a branch of science called quantum mechanics. • The quantum mechanical model describes the behaviour of electrons by an equation known as Schrodinger equation: H? = E?. • The solutions of the Schrodinger equation are known as wave functions. • Also for hydrogen atom, certain solutions obtained are permissible which are then called orbitals.
Pre-Requisites:
• Definition of atom and its constituents. • Dual nature of theory.
Activity:
Laser light as it is built on the principles of quantum mechanics.
Real Life Question:
Why are some elements metals while others non-metals? Why are some elements very reactive while others practically inert?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Quantum Mechanical Model | An atomic model in which electrons are treated as waves. |
| Quantum mechanics | Branch of science deals with the study of the motion of the microscopic objects that have both wave like and particle like properties. |
| Atomic Orbital | The wave function of an electron in an atom or molecule, indicating the electron's probable location. |
Learning aids / Gadgets
| Gadgets | How it can be used |
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Real life uses :
Lasers, transistors
Practical examples around us
| Examples | Explainations |
|---|---|
| Laser | Electrons are energized using light. These electrons then jump to a higher energy state. When they fall back to a lower energy state they emit light. |
What you learn in Theory:
Behavior of an electron in an atom.
What you learn in Practice:
How the behavior affects the nature, reactivity of elements.