Question

Give reasons for the following: i)In each period the atomic radii decrease with increase of atomic number.​

Answer 1

Answer:

Atomic radius decreases across a period because valence electrons are being added to the same energy level at the same time the nucleus is increasing in protons. The increase in nuclear charge attracts the electrons more strongly, pulling them closer to the nucleus.

Explanation:

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Answer 2

Answer:

in a period the atomic number increases but we also see that the atomic radii decreases because

• as the atomic number increases the no: of protons also increase in the nucleus
• that means the nuclear charge is also getting stronger
• as there is more nuclear charge it attracts the outer most shell towards it
• then the atomic radii also decreases

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