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.



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