# Question: Which Is Larger K+ Or Ar?

## Is CL bigger than F?

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, the electron- electron repulsion would be maximum in the chloride ion..

## Is K or Br bigger?

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.

## Why is K+ larger than 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 is smaller in size Cl or Ar?

Chlorine is smaller than Argon.

## Which is the heaviest particle?

neutronThe heaviest particle of an atom is its neutron. It is due to its weight difference from others. It is 0.18% heavier than the proton which makes it the most heaviest.

## 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.

## Is H bigger than F?

Hence though fluorine has an extra shell but due to the increased attractive forces of the nucleus on the orbiting electrons the radius decreases and in the free state both have almost an equal radius hydrogen(78 pm), fluorine(71 pm) but on adding that extra electron the increase in radius for hydrogen is more than …

## Which is smaller mg2+ or al3+?

As the effective nuclear charge which holds the electron of a atom increases the radius of an atom decreases as it is tightly pulled towards the nucleus of atom. … Hence atomic radius is totally depended on effective nuclear charge. Therefore radius of Al3+ is less than Mg2+.

## Why is atomic radius of K greater than Br?

Now focus on potassium and bromine. 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.

## Which is bigger 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−.

## Which is larger k or k+?

The size of the potassium ion depends on the location of the single electron, present on fourth energy level which is the highest, from the nucleus. 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 particle has the least mass?

ElectronElectron is around 1800 times less mass than a proton or neutron. Since a nucleus contains multiple protons and neutrons, it is obviously has less mass than a nucleus also. Thus, the correct answer is (A).

## Which particle has the greatest mass?

neutronThe subatomic particle with the largest mass is the neutron. However, the difference in mass between a neutron and proton is very small.

## Why do electrons have the least mass?

Electrons are usually depicted in drawings as much smaller than protons or neutrons because their mass is so much smaller. In fact, electron mass is so small that it is not counted in an atom’s mass.