In the Modern Periodic Table, atomic size increases down the group because ____________.

Question

Question

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RRB Group D 19 Sept 2022 Shift 3 Official Paper

Answer 1

The correct answer is number of shells increases.

Key Points:

Atomic sizes drop as a period moves from left to right.
The same shell receives progressively more electrons.
As the atomic number rises, so does the nucleus's attraction to the valence b.
The atomic size grows as one descends the group, top to bottom.
This is so that more electron shells can be added when the atomic number rises.

Additional Information:

The chemical elements are arranged in rows and columns on what is known as the periodic table, or periodic table of the (chemical) elements.
It is frequently used in physics, chemistry, and other sciences and is frequently regarded as a symbol of chemistry.
It is a visual representation of the periodic law, which claims that the atomic numbers of chemical elements have a roughly periodic relationship with their attributes.
The table is divided into four blocks that are about rectangular in shape.
The table's columns are referred to as groups and its rows are known as periods.
The periodic table's elements in the same group have comparable chemical properties.