The increasing order of atomic radius is S<F<Mg<Ba.
What elements increase atomic radius?
- Atomic radius consistently varies, as seen in the periodic table. As seen in the figures below, the atomic radius increases from top to bottom within a group and decreases from left to right during a period.
- Let's talk about an atomic radius, also known as atomic size, and the periodic table's atomic radius trend. Half the distance between two bound nuclei of the same atom is used to calculate the atomic radius.
- While your initial thought may have been to measure the distance from the center of an atom’s nucleus to the edge of its electron cloud, this is inaccurate and not feasible. This is because the borders of orbitals are quite fuzzy, and they also change under different conditions. Thus the atomic radius is measured as shown in the diagram below.
- An atom gets larger as the number of electronic shells increases; therefore, the radius of atoms increases as you go down a certain group in the periodic table of elements. In general, the size of an atom will decrease as you move from the left to the right of a certain period.
- Your initial idea might have been to measure the distance between the atoms' core and the edge of the electron cloud. However, this is unreliable and impractical. This is because the borders of orbitals are relatively hazy and might alter depending on the situation. As a result, the atomic radius is calculated as depicted in the diagram below.
- The radius of atoms increases as you move down a particular group in the periodic table of elements because an atom grows larger as the number of electronic shells increases. An atom's size will decrease when you move from the left to the right of a particular period.
Sulfer(S) is 100pm,
Fluorine(F) is 147pm,
Magnesium(Mg) is 173pm,
Baruim(Ba) is268pm.
The increasing order of atomic radius is S<F<Mg<Ba.
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