Sodium, a chemical element with prize Na, is just one of the highlyreactive alkali steels of team 1 v atomic number 11 in the periodic table. Sodiumis not uncovered in a complimentary state in nature due to its high reactivity habits so the it is abstracted from different compounds (mostly indigenous salts).

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As we know just how much sodium is being offered in the civilization ofchemistry, so us must have actually very good proper information about its digital properties to make it through in the people of chemistry and also that’s why you are below toknow what valence electrons and 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 in between valence electrons and valency

Valence electrons are the total variety of electrons presentin the outermost shell of one 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 type of condition because that a specific atom and may or no be equal to itsvalency.


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

Sodium (Na) valence electrons

There are four basic steps to uncover out the valence electron for sodium atom which are:

Step 1: find the atomic Number


To find out the atomic variety of sodium, we can use the periodictable. V the aid of the periodic table, us can conveniently see the the atom number ofsodium is 11. Together its atom number is 11, it has a total of 11 protons and forneutral sodium, the number of protons is constantly equal to the number of electronsi.e. 11 electrons in the nucleus.

Step 2: write Electron Configuration


Electron configuration is the setup of electrons on theorbitals. The salt atom has a total of 11 electrons, therefore we need to put 11electrons in orbitals. The first two electrons will certainly go in the 1s orbital together Sorbital can hold a maximum of two electrons only. The following two will certainly go in 2sorbital and the following six electrons will certainly go in 2p orbital together P orbital have the right to onlyhold a best of 6 electrons. Currently the extra one will go into the 3S orbital. Now wehave,

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

Step 3: determine Valence Shell

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

Step 4: discover Valence Electrons

The total variety of electrons existing in the valence shellof an atom is called valence electrons, and there is only one electron presentin the valence covering of sodium (3s1). Thus, sodium has only one valenceelectron.

Valency of salt (Na)

There are plenty of different methods to find out the valency of atom which reflects the ability of an atom come bond with various other atoms. Valence describeshow quickly an atom or a totally free radical can combine with various other chemical species. Thevalency of one atom is determined based on the number of electrons lost, gained, or shared with another atom.

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

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

We can additionally find the valency the sodium through the aid of a regular table. As sodium is an aspect of group 1 which shown alkalimetals group and also valency of alkali metals are always 1.

Valence electrons and valency the Na+

Sodium-ion Na+ way 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, so it has a new electron construction of1s22s22p6means Na+ has (2+6=8) outermost electrons which makes it stable. Thus, sodiumion (Na+) has eight valence electrons.

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Na+ valency is no zero prefer noble gas as their outermostshell has actually eight electrons. Once a salt atom loses one electron, Na+ ion is produced and also that’s what valency is. So that Na+ valency is +1 not zero.

Chemical Properties

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

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