Sodium, a chemical element with prize Na, is just one of the highlyreactive alkali metals of group 1 through atomic number 11 in the routine table. Sodiumis not found in a cost-free state in nature because of its high reactivity behavior so the it is abstracted from various compounds (mostly indigenous salts).

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As we know just how much sodium is being provided in the civilization ofchemistry, so we must have very an excellent proper information around its digital properties to endure in the world of chemistry and also that’s why girlfriend are below toknow what valence electrons and also valency of sodium are, aren’t you? however for thisyou need to know what these 2 terms are, so there is no wasting your time let"s gofor it,

Difference between valence electrons and also valency

Valence electrons room the total number of electrons presentin the outermost covering of an atom (i.e. In outermost orbital). The valenceelectrons because that a neutral atom is always definite, it can not be differed (more orless) in any condition for a certain atom and may or not be equal to itsvalency.


Valency is defined as the total variety of electrons one atomcan lose, gain, or re-superstructure at the time of bond formation to get astable electronic configuration i.e. To complete an octet. The valency of one atom canbe variable in various compounds or in chemistry reactions early to different bondingmechanisms.

Sodium (Na) valence electrons

There are four straightforward steps to uncover out the valence electrons for sodium atom i m sorry are:

Step 1: find the atomic Number


To find out the atomic variety of sodium, we deserve to use the periodictable. With the help of the routine table, us can conveniently see the the atom number ofsodium is 11. Together its atom number is 11, it has actually a complete of 11 protons and forneutral sodium, the variety of protons is constantly equal to the number of electronsi.e. 11 electrons in the nucleus.

Step 2: create Electron Configuration


Electron configuration is the arrangement of electrons on theorbitals. The sodium atom has a total of 11 electrons, for this reason we have to put 11electrons in orbitals. The first two electrons will go in the 1s orbital together Sorbital have the right to hold a maximum of two electrons only. The next two will certainly go in 2sorbital and the next six electrons will certainly go in 2p orbital together P orbital have the right to onlyhold a preferably of 6 electrons. Currently the extra one will get in the 3S orbital. Currently wehave,

Sodium electron construction Na (11) =1s22s22p63s1(completeconfiguration) or3s1(condensed configuration).

Step 3: determine Valence Shell

As we know, the valence covering of one atom have the right to be discovered from the highest variety of principle quantum numbers which is express in the ax of nand in1s22s22p63s1, the highest value of n is 3 so that the valence covering ofNa is3s1.

Step 4: uncover Valence Electrons

The total number of electrons existing in the valence shellof one atom is referred to as valence electrons, and there is just one electron presentin the valence shell of sodium (3s1). Thus, sodium has only one valenceelectron.

Valency of salt (Na)

There are many different ways to find out the valency of anatom which mirrors the capacity of one atom to bond with other atoms. Valence describeshow quickly an atom or a cost-free radical can combine with other chemical species. Thevalency of one atom is determined based on the number of electrons lost, gained, or common with one more atom.

An atom is said to it is in stable when its outermost shells haveeight electron (except H and also He). If the total number of electrons inoutermost shells is between one come four, the atom has actually positive valency and ifelectrons are between four to eight, the valency is calculation by subtractingfrom eight and valency is negative. Atoms having 4 outermost electronspossess both hopeful and negative valency and also atom having actually eight outermostelectrons have zero valencies (i.e. Noble gases).

Alkali metals prefer sodium reached the secure (nearest inertgas configuration) by losing one outermost electron. So that the valency ofsodium (Na) is 1.

We can additionally find the valency that sodium v the assist of a periodic table. As sodium is an element of group 1 which indicated alkalimetals group and also valency that alkali steels are always 1.

Valence electrons and valency that Na+

Sodium-ion Na+ method it has lost one electron and has only10 electrons in the orbitals. The electron configuration of neutral Na is1s22s22p63s1but in Na+ it loses one electron, for this reason it has actually a brand-new electron construction of1s22s22p6means Na+ has actually (2+6=8) outermost electrons which renders it stable. Thus, sodiumion (Na+) has eight valence electrons.

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Na+ valency is not zero favor noble gas as their outermostshell has eight electrons. As soon as a salt atom loses one electron, Na+ ion is produced and also that’s what valency is. So the Na+ valency is +1 not zero.

Chemical Properties

Sodium (Na) atom
Atomic number11
Number that protons11
Number of electrons11
Electron configuration1s22s22p63s1
Valence electrons1

Sodium-ion (Na+)
Number the electrons10
Electronic configuration1s22s22p6
Valence electrons8