Chapter 04 Structure of The Atom Questions-04
Questions
1. Write the distribution of electrons in carbon and sodium atoms.
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Answer
- The total number of electrons in a carbon atom is 6 . The distribution of electrons in carbon atom is given by:
First orbit or K-shell $=2$ electrons
Second orbit or L-shell $=4$ electrons
Or, we can write the distribution of electrons in a carbon atom as 2, 4.
- The total number of electrons in a sodium atom is 11 . The distribution of electrons in sodium atom is given by:
First orbit or K-shell $=2$ electrons
Second orbit or L-shell $=8$ electrons
Third orbit or M-shell $=1$ electron
Or, we can write distribution of electrons in a sodium atom as $2,8,1$.
2. If $K$ and $L$ shells of an atom are full, then what would be the total number of electrons in the atom?
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Answer
The maximum capacity of $K$ shell is 2 electrons and $L$ shell can accommodate maximum 8 electrons in it. Therefore, there will be ten electrons in the atom.
