Place the following elements ( s, o,se) in order from largest atomic to smallest atomic size

How do you determine atomic size?

Periodic Trends of Atomic Radius

An atom gets larger as the number of electronic shells increase; therefore the radius of atoms increases as you go down a certain group in the periodic table of elements.

In general, the size of an atom will decrease as you move from left to the right of a certain period.

What's the atomic size?

The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding cloud of electrons.

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