Question

describe the theory associated wirh the radius of an atom as it gains an electron​

Answer 1

Answer:

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when an atom gains an electron to form anion ,its radius increases . ... when an atom loses an electron to form cation , its radius decreases . due to decreases number of electrons , nuclear charge per electron is increases , hence, effective nuclear charge increases as a result radius of cation decrease .

Explanation:

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Answer 2

Answer:

when an atom gain an electron to form anion , it's radius increases

Explanation:

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