Which element has the smallest ionic radius?

3A (13)
4A (14)
5A (15)
6A (16)

Which ion has the smallest ionic radius?

Because K + has the greatest nuclear charge (Z = 19), its radius is smallest, and S 2− with Z = 16 has the largest radius.

Which of the following ions has the smallest radius?

Explanation: The ion that has the smallest atomic radius is . This is because fluoride is the most electronegative element, which means that electrons are more attracted to the nucleus.

Which ion has the largest ionic radius?

Explanation: The ionic radii of cations follow the same trends as atomic radii. They increase from top to bottom and from right to left in the Periodic Table. Thus, the ion with the largest radius is closest to the lower left corner of the Periodic Table, and that is the K+ ion.

Is ionic radius smaller?

When an atom loses an electron to form a cation, the lost electron no longer contributes to shielding the other electrons from the charge of the nucleus; consequently, the other electrons are more strongly attracted to the nucleus, and the radius of the atom gets smaller.

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Why is Fe2+ bigger than Fe3+?

Fe2+ will be larger than Fe3+. This is because the outermost electron in the Fe2+ ion is pulled off to form Fe3+ ion. As the electrons are removed, it reduces the repulsion increasing nuclear charge experienced by each of the other d electrons and decreases the size of the ion.

Do you predict that the ionic radius of Sr2+ is larger or smaller in size than the ionic radius of Mg2+?

Hence, from the electronic configuration of Mg2+ ( [He]) and that of Sr2+ ([Kr]), the Sr^2+ ion is much larger and has many more intervening shells than Mg2+. Hence it follows that as we move down group 2, we expect that the ionic radius should increase in accordance with the reason given above.

Which is the smallest radius?

Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.

Which has smallest radius?

Hence, Cl has the smallest radius.

Which particle has the smallest radius?

Which element has the smallest atomic radius? Explanation: Helium has the smallest atomic radius. This is due to trends in the periodic table, and the effective nuclear charge that holds the valence electrons close to the nucleus.

Why is K bigger than Br?

Since potassium is located at the start of period 3, and bromine at the end of the same period, potassium will have a larger atomic radius than bromine, and thus the largest atomic radius of the four given atoms.

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Which ion has the largest radius se2 F O2 Rb+?

Answer. Answer: The answer is “Rubidium Rb+”.

Which has the largest radius O or O 2?

O2− is larger than O because the increase in electron repulsions that accompany addition of an electron causes the electron cloud to expand. O2− is larger than O because O is neutral but O2− has a charge 2−. … S2− is larger than O2− because for particles with like charges, size increases going down a family.

Which is larger F or F 1?

F-1 is larger than F because F has a greater positive charge and electrons repel the nucleus.

What is the ionic radius of s2?

The ionic radii of the ions S2–, Cl–, and K+ are 184, 181, 138 pm respectively.

Which is bigger atomic radius or ionic radius?

Metals – the atomic radius of a metal is generally larger than the ionic radius of the same element.

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