describe Bohr's model of the atom if n=3 what would be the maximum number of electrons in the shell
Answers
Bohr's model of an atom :
- Atoms is made up of three particles : electrons, protons and neutrons.
- The protons and neutrons are located at the centre of the atom.
- The electrons revolve round the nucleus in fixed energy levels.
- Each energy level is associated with fixed amount of energy.
Given :
- n = 3
To find :
- The maximum number of electrons in last shell
According to the question,
➞ By using the formula 2n²
➞ Substituting the values,
➞ 2(3)²
➞ 2(9)
➞ 18
So,the maximum number of electrons in the shell is 18.
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More details :
The number of electrons present in K shell
➞ 2n²
➞ 2(1)²
➞ 2(1)
➞ 2
The number of electrons present in L shell
➞ 2n²
➞ 2(2)²
➞ 2(4)
➞ 8
The number of electrons present in M shell
➞ 2n²
➞ 2(3)²
➞ 2(9)
➞ 18
The number of electrons present in N shell
➞ 2n²
➞ 2(4)²
➞ 2(16)
➞ 32
Answer:
1st orbit (energy level) is represented as K shell and it can hold up to 2 electrons.
2nd orbit (energy level) is represented as L shell and it can hold up to 8 electrons.
3rd orbit (energy level) is represented as M shell and it can contain up to 18 electrons.
4th orbit (energy level) is represented as N Shell and it can contain maximum 32 electrons.
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