Bohr's Model For Hydrogen Atom
Chapter Name : Structure Of Atom |
Sub Topic Code : 102_11_02_04_03 |
Topic Name : Bohr's Model For Hydrogen Atom |
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Sub Topic Name : Limitations Of Bohr's Model |
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Introduction
1.)
Bohr’s model failed to explain the finer details of the line spectrum
of hydrogen atom which is observed by highly advanced techniques.
2.)
It also does not explain the spectrum of atoms other than hydrogen.
3.)
It was unable to explain Zeeman effect and Stark effect.
4.) It could not explain the ability of atoms to form molecules by chemical bonds.
Pre-Requisites:
Wave, atom
Activity:
Each element has an atom.
The atoms combine to make compounds and molecules.
Real Life Question:
How are electrons distributed
around the atom?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Atom | An atom is the smallest unit of an element. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Racing track | Picture the atom to be similar to a racing track. The individual concentric tracks are the orbits and the middle ground is the nucleus whereas the athletes are the electrons. |
Real life uses :
Atoms make up molecules.
Places to visit :
Racing track, stadium.
Practical examples around us
| Examples | Explainations |
|---|---|
| Racing track | Picture the atom to be similar to a racing track. The individual concentric tracks are the orbits and the middle ground is the nucleus whereas the athletes are the electrons. |
What you learn in Theory:
1.)
Bohr’s model failed to explain the finer details of the line spectrum
of hydrogen atom which is observed by highly advanced techniques.
2.)
It also does not explain the spectrum of atoms other than hydrogen.
3.)
It was unable to explain Zeeman effect and Stark effect.
4.) It could not explain the ability of atoms to form molecules by chemical bonds.
What you learn in Practice:
The atomic structure is
important to know the structure of the molecule.