Help me in perodic table
I dont know what increases or decreases when seeing from top to bottom, left to right
Answers
HEYA MATE !!
TRENDS in the modern periodic table :
Valency:
it is determined by the number of electrons in it's valence shell. It can't be stated as either increased nor decreased in a period going left to right or right to left.
Going down a group,there is no change in the valency of an element.
Atomic radius:
It decreases in moving from left to right along a period since,the more of nuclear charge makes all the shells come near the nucleus ,resulting in the decrease of the atomic radius.
The atomic size increases down the group.(reason:a new shell is added as we go down a group).
Metallic or Non-metallic character:
In a periodic table,metals are present on the left hand side,so as we go left to right in a period,the basic nature starts moving to change into acidic nature due to the Non-metals on the right side of a modern periodic table.
Metallic character decreases across a period and increases down a group.
If we consider a property of an element to be electropositive or electronegative in nature,
then,in a modern period table
it goes like,
electronegativity increase going left to right.
hope it helps
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GOOD LUCK FOR UR BOARD EXAMS !
Hey mate your answer :
And also please mark as brainliest