Question

What trend you see in the atomic size on studying the elements from left to right in the Modern Periodic table.​

Answer 1

Answer:

As we go left to right across a period in the Modern Periodic Table, with the increase in Atomic number, the Atomic size decreases.

This is because, while going across the periodic table, the atomic number increases, which increases the effective nuclear charge on the outermost or valence electrons, which makes the electrons more tightly bound to the nucleus.

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