explain the valency variation in valency group wise and period wise in Modern Periodic Table
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1 on moving from up to dpwn in a group their is no change in velency
2 on moving from left to right in a period at first velency is increased from 1 to4 and then decrease from 4 to 0
When we move from left to right in periodic table valency increases. But after 4, it decreses also.
The electrons present in the last shell determine the valency of a particular element.
If the number of valence electrons ≤4: valency = number of valence electrons
If the number of valence electrons >4: valency = 8 - number of valence electrons.
You can observe the variation in the periodic table
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2 on moving from left to right in a period at first velency is increased from 1 to4 and then decrease from 4 to 0
When we move from left to right in periodic table valency increases. But after 4, it decreses also.
The electrons present in the last shell determine the valency of a particular element.
If the number of valence electrons ≤4: valency = number of valence electrons
If the number of valence electrons >4: valency = 8 - number of valence electrons.
You can observe the variation in the periodic table
follow me for more help in chemistry
###$### mohit
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ok thanks for answering my question
Kunal
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Period wise
Atomic size decrease
Nuclear charge increase
Distance between nucleus and electrons decrease
Tendency to loose electron decrease
Metallic charge decrease.
And opposite to this is group wise. Where period wise it decrease in group wise it increases. And where in period wise it increases in group wise it decreases.
Atomic size decrease
Nuclear charge increase
Distance between nucleus and electrons decrease
Tendency to loose electron decrease
Metallic charge decrease.
And opposite to this is group wise. Where period wise it decrease in group wise it increases. And where in period wise it increases in group wise it decreases.
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