Sodium, a chemical facet with symbol Na, is among the highlyreactive alkali metals of group 1 through atomic number 11 in the regular table. Sodiumis not uncovered in a totally free state in nature because of its high reactivity actions so the it is abstracted from various compounds (mostly indigenous salts).

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As we know exactly how much salt is being supplied in the civilization ofchemistry, so us must have actually very an excellent proper information about its digital properties to endure in the human being of chemistry and that’s why friend are right here toknow what valence electrons and valency of sodium are, aren’t you? but for thisyou have to know what these 2 terms are, so there is no wasting your time let"s gofor it,

Difference in between valence electrons and also valency

Valence electrons space the total number of electrons presentin the outermost shell of one atom (i.e. In outermost orbital). The valenceelectrons for a neutral atom is always definite, it cannot be varied (more orless) in any type of condition because that a particular atom and also may or not be equal to itsvalency.


Valency is identified as the total number of electrons one atomcan lose, gain, or re-publishing at the time of bond formation to obtain astable digital configuration i.e. To complete an octet. The valency of an atom canbe change in different compounds or in chemistry reactions early to various bondingmechanisms.

Sodium (Na) valence electrons

There are four basic steps to discover out the valence electrons for salt atom i beg your pardon are:

Step 1: uncover the atomic Number


To find out the atomic number of sodium, we can use the periodictable. V the help of the routine table, we can conveniently see the the atom number ofsodium is 11. As its atom number is 11, it has a complete of 11 protons and forneutral sodium, the number of protons is constantly equal come the number of electronsi.e. 11 electron in the nucleus.

Step 2: write Electron Configuration


Electron construction is the setup of electron 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 2 electrons only. The next two will go in 2sorbital and also the following six electrons will go in 2p orbital together P orbital can onlyhold a best of 6 electrons. Currently the extra one will get in the 3S orbital. Now wehave,

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

Step 3: recognize Valence Shell

As we know, the valence covering of one atom deserve to be found from the highest variety of principle quantum numbers which is expressed in the hatchet of nand in1s22s22p63s1, the highest possible value of n is 3 so that the valence covering ofNa is3s1.

Step 4: find Valence Electrons

The total number of electrons present in the valence shellof one atom is called valence electrons, and also there is just one electron presentin the valence covering of salt (3s1). Thus, sodium has only one valenceelectron.

Valency of salt (Na)

There are numerous different methods to find out the valency of anatom which shows the capacity of one atom to bond with other atoms. Valence describeshow easily an atom or a free radical can combine with other chemical species. Thevalency of an atom is determined based on the variety of electrons lost, gained, or mutual with one more atom.

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

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

We can also find the valency the sodium v the assist of a routine table. As salt is an element of group 1 which indicated alkalimetals group and also valency of alkali metals are constantly 1.

Valence electrons and valency the Na+

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

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Na+ valency is no zero like noble gas together their outermostshell has actually eight electrons. When a sodium atom loser one electron, Na+ ion is produced and also that’s what valency is. So the Na+ valency is +1 no zero.

Chemical Properties

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

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