Today is my exam and i have a confusion ...
How period of periodic table can be identified by valency??
For ex-if any element have electronic configuration of 2,8,6 then how we will come to know that it belongs to 3rd period
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because the number of shell are 3 then period no. will also be 3
Answered by
4
See you have to take any Element like
Mg
Do it's electronic configuration means 2,8,2 as it's atomic no is 12
since it has 3 shell therefore period no is also 3
Hope you will mark me brainliest
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