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ICSE Class 8 Answered

how to use spdf method for electronic configuration?
Asked by rahuladitya303 | 29 May, 2019, 06:30: PM
answered-by-expert Expert Answer
Accroding to Aufbau principle, These orbitals are arranged in lower energy to higher energy order. Orbitals having low energy will be filled first.
 
 
 
 
Also remember maximum electrons in S orbital=2, In p orbital=6, In d orbital=10, In f orbital=14 
 
Let's understand this by an example.
In case of Sodium(Na) - Atomic number is 11 which means total number of electrons in Na is 11.
So we will fill electrons according to diagram from lower energy level to high energy level.
 
Configuration -
 
1s2 2s2 2p6 3s1
Answered by Ravi | 30 May, 2019, 11:11: AM
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