Question: Which ion has the largest diameter?

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.

Which ion has the largest size?

Consequently, the ion with the greatest nuclear charge (Al 3 +) is the smallest, and the ion with the smallest nuclear charge (N 3−) is the largest.

Ionic Radii and Isoelectronic Series.

Ion Radius (pm) Atomic Number
N 3− 146 7
O 2− 140 8
F − 133 9
Na + 98 11

Which atom has largest diameter?

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 atom or ion is largest?

The Na− ion is larger than the parent Na atom because the additional electron produces a 3s2 valence electron configuration, while the nuclear charge remains the same.

Ionic Radii and Isoelectronic Series.

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Ion Radius (pm) Atomic Number
N3− 146 7
O2− 140 8
F− 133 9
Na+ 98 11

Is S2 or Ca2+ larger?

2 Answers. For a) the neutral Ca atom has a larger radius than the Ca2+ ion. … For b) S2− has a larger radius than the neutral S atom. When an atom gains one or more electrons, forming an anion, the added electron(s) increase the shielding effect between the outermost electrons and the atomic nucleus.

Is Br or I bigger?

Because Iodine has the greatest atomic number, it has a larger radius. This rules out Br and Cl. I- is Iodine in the 1- oxidation state. This means that is has 1 extra electron, and its radius is therefore greater than I.

Which ion has the largest radius se2 F o2 Rb+?

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

Which is larger k or k+?

These are electrons with “highest energy level”. When at neutral, the potassium ion in the form of K has an electronic configuration of: … The K+ ion has its outermost electrons on the third energy level now and is size is smaller than that of K ion. Hence, K is larger than K+.

Which has largest radius?

Since the atomic radius decreases in a period but increases down the group so Sr of group II and period V is largest in size.

What 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.

Which is bigger Na or Na+?

Yes Na+ is smaller than Na because Na+ is formed when an electron is lost from the Na atom,Thus the effective nuclear charge increases bcz the number of protons exceeds the number of electrons . This results in bringing the valence shell a little closer to the nucleus because of a very strong nuclear pull.

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Which ion is the smallest?

More the nuclear charge on ion, electrons are more strongly attracted and thus size decreases. Hence, among the given ions Al3+ is the smallest ion.

How do you compare ion sizes?

Ions aren’t the same size as the atoms they come from. Compare the sizes of sodium and chloride ions with the sizes of sodium and chlorine atoms. Positive ions are smaller than the atoms they come from. Sodium is 2,8,1; Na+ is 2,8.

Which is larger F 1 or F?

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

Which ion is larger Fe2+ or Fe3+?

Fe2+ is greater in size than Fe3+. Consider the electronic configuration of Fe2+[Ar] 3d6 and Fe3+ [Ar]3d5 (For comparison, Fe [Ar] 4s2 3d6). Fe3+ ionic radius is 63 pm, while Fe2+ has an ionic radius of 77 pm. (For comparison, the Fe atom has a radius of 140 pm.)

Is F larger than ne?

The answer is Ne. These 3 elements belong to the same period (row) with Ne having 1 more proton ( and electron) than F, which itself has one more proton ( and electron) than O. … How would you determine which element has a larger or smaller atomic radius?

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