The atomic radius, is the measured size of the atoms of a chemical element. Usually this is the typical distance between the nucleus and the boundary of the surrounding electrons.
Francium has the largest atomic radius among all elements.
The element nickel (Ni) has an atomic radius of 124 picometers.
If you think to the atomic radius (empirical) this chemical element is very probable radium.
The atomic radius is calculated by spctroscopic or X-ray methods.
The atomic radius of bromine is lower.
Barium has a larger atomic radius than tin.
The atomic number of the chemical element hydrogen is 1.
varys from 2,342 kilometres to 103,230 kilometres in diameter
The element in group 1 with the smallest atomic radius is lithium, due to its higher nuclear charge compared to the other elements in the group (such as sodium and potassium). This higher nuclear charge attracts the electrons more strongly, leading to a smaller atomic radius.
The atomic radius of an element is inversely related to its chemical reactivity. Smaller atomic radius generally leads to higher reactivity, as smaller atoms have a stronger attraction to other atoms and are more likely to form bonds. Conversely, larger atomic radius tends to result in lower reactivity, as larger atoms have weaker attraction and are less likely to form bonds.
The atomic radius of chemical elements is expressed in picometers (pm).
It is helium that has the smallest atomic radius. Use the link below to see a list of elements arranged by atomic radius.