# Is Cl Or K+ Bigger?

## Is Cl or F bigger?

The order in decreasing size would be Cl- > F- > Na+ > Li+.

This can be explained by the following logic.

Cl- would be the largest because it has the largest number of electrons, i.e.

18.

Similarly Li+ would be the smallest because it has only 2 electrons and therefore the least electron- electron repulsion..

## Which is bigger in size CL or CL and why?

Because the nucleus can’t hold the 18 electrons in the Cl- ion as tightly as the 17 electrons in the neutral atom, the negative ion is significantly larger than the atom from which it forms.

## What is the Zeff of CL?

for Cl-: Zeff=17-9=8. This is for your rules, where the core electrons contribute 1 to S and the valence electrons contribute nothing.

## Which ion is larger Cl or p3?

All three ions have the same number of electrons, but P3- has the fewest number of protons, so it has the least positive nucleus out of the three atoms. Therefore, it will be the largest.

## Is K+ bigger than s2?

S2− is larger than K+ because the decrease in electron repulsions that accompany addition of an electron causes the electron cloud to expand. S2− is larger than K+ because the two ions are isoelectronic and K+ has the larger Z and Zeff.

## Are K and Cl Isoelectronic?

Potassium has an atomic number of 19 (Z = 19). … And we can see that the potassium ion, K+, has the same electronic configuration as the chloride ion, Cl-, and the same electronic configuration as an atom of argon, Ar. Therefore, Ar, Cl-, and K+ are said to be isoelectronic species.

## Which is smaller K+ or ca2+?

K+ is larger than Ca2+ . is larger than . |rmK+ is larger than Ca2+ because Ca2+ has the greater charge. |rmK+ is larger than Ca2+ because the increase in electron repulsions that accompany addition of an electron causes the electron cloud to expand.

## Which ion is smaller Cl or K+?

In other words, K+ has bigger effective nuclear charge than Cl− , which translates to a bigger net positive charge felt by the outermost electrons. This will compress the energy levels a bit and make the ionic radius smaller for the potassium cation. Therefore, the chloride anion will have the larger atomic radius.

## Which is larger Na+ or Cl?

The order in decreasing size would be Cl- > F- > Na+ > Li+. This can be explained by the following logic. Cl- would be the largest because it has the largest number of electrons, i.e. 18. … So Na+ is smaller due to the larger attractive force of the protons.

## Why is the ionic radius of K+ smaller than CL?

In other words, K+ has bigger effective nuclear charge than Cl− , which translates to a bigger net positive charge felt by the outermost electrons. This will compress the energy levels a bit and make the ionic radius smaller for the potassium cation. Therefore, the chloride anion will have the larger atomic radius.

## Is Cl or s2 bigger?

S2- has one less proton than Cl-, thus there is less attraction between the protons and electrons and thus ionic radii is bigger.

## Which is larger Na or K?

As an example, potassium (K) has a larger average atomic radius (220 pm)than sodium (Na) does (180 pm). The potassium atom has an extra electron shell compared to the sodium atom, which means its valence electrons are further from the nucleus, giving potassium a larger atomic radius.