Question

Explain the term, atomic radii and state the trend in atomic radii up the group (bottom to top) and across the period (left to right) in the periodic table.

Answer 1

Answer:

Atomic radius is defined as the distance between the nucleus of an atom.

Trends

Down the group- Atomic Radius increases because no. of shell increases in the atom.

And also due to poor shielding effect.

Across period - Atomic radius decreases because no. of electron in the valence shell increases.

Hence shielding effect increases

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Answer 2

Answer:

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