ionic radius

[705340227]

Do cations, anions, or the regular atom have the largest atomic radius?

[Catie Donohue 2K]

I believe that cations have fewer electrons than their parent atom and are therefore smaller. Anions are negative and therefore have more electrons, so anions are larger than the original atom.

[JoshMoore2B]

Anions should have the largest ionic radius, because they have extra electrons. These extra electrons increases electron-electron repulsion, fill in shells, and overall increase the range at which the anion can interact with other objects.

Generally, the radius of atoms or ions is determined by their electrons, so adding more should naturally increase the radius.

[Gian Boco 2G]

Cations would be smaller than their normal atoms because there are more protons than there are electrons, reducing electron repulsion as well allowing the protons to pull tighter on the lesser number of electrons, making that ionic radius smaller.

[Lauren Mungo 1K]

Cation are smaller than the original atom because there is less electron-electron repulsion. Anions are larger than their original atom for the opposite reason, there is more repulsion.

[Ansh Patel 2I]

Hi! Cations have the smallest ionic radius, and anions have the largest. This is because cations have more protons than electrons (therefore positively charged), which lowers the electron-electron repulsion.

[Justin Lin 1B]

Cations would be smaller than the original atom because of less electron repulsion while anions are larger because of more electron repulsion

[Nhu Pham-Dis3G]

Anions have a larger atomic radius compared to the regular atom, and cations have a smaller atomic radius compared to the regular atom. This is because more electrons = increased electron-electron repulsion. On the other hand, with cations, the valence electrons (furthest away from nucleus) are lost.

[AntonioZarich2E]

Is there an easy way to find out if an anion of an element would be bigger than a cation of a different element, if the natural atom of the element corresponding to the anion is smaller than that of the cation?

[joshtully]

Anions have the largest ionic radius, while cations have the smallest ionic radius.

[LovepreetSran_3H]

Anions have the largest ionic radius since they have more electrons then the original atom, while cations have the smallest ionic radius since they have less electrons than the original atom.

[Joshua Chung 2D]

As anions have extra electrons and cations have less electrons than the "normal" state of the element, anions are larger and cations are smaller.

[Sabrina Galvan 3J]

In order of smallest to largest ionic radius, it goes cation, normal, and anion.

[Muskaan Abdul-Sattar]

Hey! I believe that cations have the smallest ionic radius, while anions have the largest.

[Manseej Khatri 2B]

Hi. Cations have less electrons, meaning the pull of the nucleus' positive charge is stronger and the radius is smaller relative to the original atom. The anion has more electrons, meaning the radius would be larger relative to the parent atom as there are more electrons and the effective nuclear charge would thus decrease.