Sb has the largest atomic radius. True . Now, chlorine, indium and gallium chlorine. size decreses atomic no i,e. The answer is Argon. 0. Helium (He) has the smallest atomic radius. This is because each atom further down the column has more protons and neutrons and also gains an additional electron energy shell. Citation- … Answer Save. nuclear charge increases.Helium has at no 2 .It has smallest atomic size.It is smaller than Hydrogen bcoz the nuclear charge is greater, and the 2 electrons occupy the same orbital as does the single electron in the hydrogen because the nuclear charge is greater, and the 2 electrons occupy the same orbital as does the single electron in the hydrogen atom. Thus, helium is the smallest element, and francium is the largest. Which of the following list of elements is arranged from smallest to largest atomic radius? The element that is considered to have the smallest atomic radius is helium. The Noble Gases do not have an ionic radius.This is because they don't form ions. Which element among the Lanthanides has the smallest atomic radius ? The atomic radius of an element is the average distance from the nucleus to the outermost shell. When an atom (A) is covalently bonded with another homonuclear atom (A), the atomic radius of that atom can be calculated by measuring the distance between the two nucleus of those two atoms. Generally, the atomic radius increases as the number of electron shells increases, and within the same period, the atomic radius decreases as we go to the right. DRAFT. Across a period (left to right) the atomic size decreases .... due to increase in effective nuclear charge. Lutetium is the last element of … You can identify the elements from the number of electrons they have. Thus, helium is the smallest element, and francium is the largest. c) Period 4 element with filled outer level. Solution for Which element has the smallest ionic radius? What are the period and group trends of different properties? How does the size of fluorine ion (F-1) compare to that of a fluorine atom (F)? The atomic radius is the distance from the nucleus of an atom to the outermost electrons. The ion is larger than the atom. Preview this quiz on Quizizz. d) Nb is the largest, with the most energy levels. Anonymous . However, this assumes the atom to exhibit a spherical shape, which is only obeyed for atoms in vacuum or free space. This time, even though the number of protons increases by a lot, the electron valence shells do not. 1. So the order will be Oxygen

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which element has the smallest atomic radius

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