Neutral atoms are smaller than negatively charged ions of the same element.
Bromine is smaller than iodine.
So neutral bromine would have the smallest radius of the species listed.
Helium has the smallest covalent radius
NA
Mercury is the smallest planet except for pluto. It has a radius of 2439km.
Atomic Radius gets greater down the periodic table and gets smaller to the right in the periodic table. This means, in order of atomic radius, that the five smallest elements are Helium, Neon, Fluorine, Oxygen, and Hydrogen in that order. Check all of it out at http://www.ptable.com/ under properties>radius
It is hydrogen.
Br, not Br-
Br-apex
Br is the atom with the smallest. K+ is the ion with the smallest radius. In general, the shape with the smallest radius has the smallest diameter
The answer choices for this question wasn't provided. Oxygen has the smallest atomic radius. The higher the electronegativity in an element makes the atomic radius smaller.
Southern
Helium has the smallest covalent radius
Hydrogen has the smallest atomic radius - 25 pm.
NA
Chlorine will have the smallest atomic radius, bromine the largest.
It is helium that has the smallest atomic radius. Use the link below to see a list of elements arranged by atomic radius.
Helium usually is listed with the smallest atomic radius when calculated. Hydrogen however has a smaller van der Waals radius The protium isotope of hydrogen has the smallest nucleus radius. It is 1.6 fm
Argon doesnt have the smallest atomic radius, its chlorine.Argon has the largest atomic radius in period 3.