# Why does chlorine have a smaller radius than sodium?

## Why does chlorine have a smaller radius than sodium?

Example: A neutral chlorine atom contains 17 electrons, while a Cl- ion contains 18 electrons. The 11 protons in the nucleus of an Na+ ion, for example, should be able to hold the 10 electrons on this ion more tightly than the 11 electrons on a neutral sodium atom.

Why atomic radius of sodium is more than atomic radius of chlorine?

As we move from sodium to chlorine, the number of protons increases along with the electrons (being added in the same shell). This leads to increased attraction of the electrons by the nucleus.

Which has smaller size Na or Cl?

As you move down an element group in the periodic table, the atomic radius increases. So the atomic size increases as we move from up to down of a group. So Sodium (Na) has a bigger atom size when compared to Chlorine (Cl) which is above it on the periodic table.

### Why does sodium have a larger atomic radius?

The number of energy levels increases as you move down a group. This means that its valence electron is in the second energy level. Sodium is in period 3 in group 1/IA, so its valence electron is in the third energy level, therefore it has a greater atomic radius than lithium.

Is sodium larger than chlorine?

Sodium atoms are much larger than chlorine atoms, but sodium ions are much smaller than chloride ions.

Which of the following reason correctly justifies that chlorine is smaller than sodium?

Chlorine has more number of protons than that of Sodium. So, Chlorine’s nucleus size is greater than Sodium. Hence, Chlorine will have smaller atomic radius than Sodium.

#### What is the atomic radius of F?

147 pm

Why is Cl larger than Na+?

Na+ has a +ve charge . Due to this , it tends to bind electrons closer to it as the 1 +ve charge of proton is distributed to every 10 remaining electron. As a result, electrons tend to move away. Hence , it has a larger size than Cl atom.

Which has more size F 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, the electron- electron repulsion would be maximum in the chloride ion.

## Does chlorine or sodium have a higher atomic radius?

However, one of the main reasons why Na has a larger atomic radius than Cl is because Cl has more protons, though they both are filling the n=3 shell. Thus, the electrons in the outermost shell of Cl experience a stronger attraction toward the nucleus (because the nucleus of Cl has a greater charge).

Is aluminum bigger than chlorine?

Since,Chlorine is present on the right side of Aluminium, it has smaller atomic size.

Why does sodium have a larger atomic radius than chlorine?

Sodium has a larger atomic radius than aluminum. When an atom of chlorine forms an ionic bond with an atom of sodium does the atom of chlorine become an ion with a smaller or larger radius than the atom of chlorine? What element has the largest atomic radius out of sodium magnesium phosphorus and chlorine?

### Why is a chlorine atom smaller than an ion?

Hence, the ion is smaller in size than the atom. In case of chlorine, the ion acquires an electron thus increasing the overall size which in turn reduces the effective nuclear charge resulting in a bigger size than the atom Hope it’s clear.

Which is bigger a Cl atom or a Na atom?

An Na+ ion is smaller than an Na atom while a Cl-ion is bigger than a Cl atom. Why? In general, atomic radius is the distance between the centre of the nucleus and the outermost shell of electrons. In Na atom, the outermost shell is the ‘M’ (3rd shell)shell which has one electron.

Which is larger a lithium atom or a sodium atom?

A sodium (Na) atom has a slightly larger atomic radius than a lithium (Li) atom. Their atomic radii are about 2.23 and 2.05 angstroms, respectively. Does Sodium have a larger atomic radius than Aluminum? What is the largest radius Na or Al? Sodium has a larger atomic radius than aluminum.

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