How can identity group or period
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For identify period we do electronic configuration of elements
Like for Al= 2,8,3
ie its periods r 3rd period
And for group we identify it by subshell methomethod
Eg Al=1s2 2s2 2p6 3s2 3p1
So from outermost electron
We know that it is of p block
For p1 group no is 3rd A ......
Like for Al= 2,8,3
ie its periods r 3rd period
And for group we identify it by subshell methomethod
Eg Al=1s2 2s2 2p6 3s2 3p1
So from outermost electron
We know that it is of p block
For p1 group no is 3rd A ......
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