No, H+ ions are the smallest (proton size), hydrogen atoms and even Li+ ions are smaller than Li atoms.
Li+
Lithium (Li) with a charge of 1+.
Fluorine.
Lithium (Li) with a charge of 1+.
The smallest element is hydrogen (atomic number = 1). When one electron is added to hydrogen, hydride ion is formed and this is the anion with smallest ionic radius.
Li+
Lithium (Li) with a charge of 1+.
The Hydrogen Ion has the smallest ionic radius.
Fluorine.
Lithium (Li) with a charge of 1+.
Rb is the largest, Li the smallest in the row above. Group 1 of the periodic table: Fr > Cs > Rb > K > Na > Li > H
Helium would have - it is an alpha particle.
The smallest element is hydrogen (atomic number = 1). When one electron is added to hydrogen, hydride ion is formed and this is the anion with smallest ionic radius.
radius: He ionic radius : Mn7+ electronegativity : Fr electron affinity : Fr ionization energy: H
francium has the largest ionic radius
Smallest to largest is going down the group 1. I.e. Li is smallest<Rb<Cs
the positive ionic radius is smaller than the neutral atomic radius