Question

How does the atomic radius change as you go

a) From left to right in a period?

b) Down a group in the periodic table?​

Answer 1

Answer:

a.) Atomic radius decreases

b.) Atomic radius increases

Explanation:

a.) Atomic radius decreases while going from left to right in a period. This is because new electrons get added to the same shell while going from left to right in a period, which increases the attraction between electrons and protons, thus pulling electrons closer to protons and decreasing the atomic radius.

b.) Atomic radius increases while going down a group. This is because new shells get added to the atom, making the distance between protons and electrons greater. This lowers the attraction between them, resulting in a smaller atomic radius.

Answer 2

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