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what is aufbau ?

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what is aufbau ?

Posted by Themitesh Makwana 5 years, 9 months ago

CBSE > Class 11 > Chemistry

3 answers

Aman Kumar 7 years, 6 months ago

Aufbau principle is the submission of 2 rules:- 1) Lowest sum rule:- That orbital will filled first for which the value of n will be minimum. E.g. 3d= n+l=3+2=5 4s=n+l= 4+0=4 2)If the value of (n+l)willbe same then that orbital will filled first which value of n will be minimum.. E.g. 3p=n+l=3+1=4 4s= n+l=4+0=4

Nancy Rajput 7 years, 6 months ago

Aufbau principle states that : In the ground state of the atoms, the orbital are filled in increasing order of their energies. i.e electrons first occupy the lowest energy orbital available to them and enter in the higher energy orbital only after the lower energy orbitals are filled. The order in which the electrons are filled is : 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p.. and so on

∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 6 months ago

The aufbau principle states that in the ground state of an atom or ion, electrons fill atomic orbitals of the lowest available energy levelsbefore occupying higher levels.

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