why all the periods in the periodic table do not have the same no.Of element in them
Answers
All the periods in the periodic table do not have the same number of elements in them as the number of elements in a period is determined by the quantum numbers.
For example: The first period has two elements only since the 1s orbital gets filled.
The second period has eight elements only since the two orbitals- 2s and 2p get filled. This happens for all the periods.
Therefore, it depends on the Principle Quantum number and Azimuthal quantum number.
Dear rekha,
The number of elements a period should have was decided by genius scientists and men, with careful thinking and logic...
The number of elements in a period depends on various factors like valency, metal or non-metal, metalloid etc...
Hope it helps you....
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