Question

write various treads in modern periodic tables​

Answer 1

There are specific patterns present in the arrangement of elements in the periodic table. These periodic table trends arise out of the specific arrangement of elements due to the Periodic Law. Studying these trends, allows chemists, scientists and even us to quickly identify certain properties of an element.  They exist because our periodic table places elements that have similar characteristics together. There are certain exceptions to the trend also. Let us look at a few of these trends that we find in our periodic table.

Valency

Atomic Size

Electronegativity

Metallic and Non-metallic Properties

Answer 2

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