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.

its first and third is your answer i did the qustion the fourth isnt right