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Why when going down a group of the periodic table, electrons are also being added but the sizes of the atoms increase?

User Nickand
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Answer:

The number of energy levels increases as you move down a group as the number of electrons increases. Each subsequent energy level is further from the nucleus than the last. Therefore, the atomic radius increases as the group and energy levels increase. Hope this helps!

Step-by-step explanation:

um same as the answer...?

User Sadesh Kumar N
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