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write the electronic configuration of an element whose atomic number is 19
Asked by shenbagam valli | 09 Apr, 2011, 01:54: AM
answered-by-expert Expert Answer
To write the electronic configuration of an element having Z=19
 
1s2, 2s2 2p6, 3s2 3p6, 4s1 or  we can write [Ar]4s1  
Answered by | 09 Apr, 2011, 11:40: AM

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