Sodium, a chemical aspect with symbol Na, is just one of the highlyreactive alkali metals of team 1 with atomic number 11 in the periodic table. Sodiumis not discovered in a totally free state in nature because of its high reactivity actions so the it is abstracted from different compounds (mostly from salts).

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As us know how much sodium is being offered in the civilization ofchemistry, so us must have very good proper information about its digital properties to survive in the civilization of chemistry and also that’s why friend are here toknow what valence electrons and valency of sodium are, aren’t you? however for thisyou need to know what these 2 terms are, so without wasting her time let"s gofor it,

Difference between valence electrons and valency

Valence electrons are the total number of electrons presentin the outermost covering of one atom (i.e. In outermost orbital). The valenceelectrons because that a neutral atom is constantly definite, it cannot be differed (more orless) in any kind of condition for a details atom and also may or no be same to itsvalency.


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Valency is defined as the total number of electrons an atomcan lose, gain, or share at the time of bond development to gain astable digital configuration i.e. To finish an octet. The valency of an atom canbe variable in different compounds or in chemical reactions due to various bondingmechanisms.

Sodium (Na) valence electrons

There space four an easy steps to find out the valence electrons for sodium atom i beg your pardon are:

Step 1: discover the atomic Number


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To discover out the atomic number of sodium, we deserve to use the periodictable. With the aid of the periodic table, us can easily see that the atomic number ofsodium is 11. Together its atomic number is 11, it has actually a full of 11 protons and also forneutral sodium, the variety of protons is constantly equal to the variety of electronsi.e. 11 electron in the nucleus.

Step 2: compose Electron Configuration


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

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

Step 3: recognize Valence Shell

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

Step 4: uncover Valence Electrons

The total variety of electrons present in the valence shellof one atom is referred to as valence electrons, and there is only one electron presentin the valence covering of salt (3s1). Thus, sodium has actually only one valenceelectron.

Valency of sodium (Na)

There are many different means to uncover out the valency of atom which shows the capability of one atom come bond with other atoms. Valence describeshow quickly an atom or a cost-free radical can integrate with other chemical species. Thevalency of an atom is determined based on the variety of electrons lost, gained, or common with another atom.

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

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

We can additionally find the valency of sodium v the assist of a routine table. As salt is an facet of team 1 which indicated alkalimetals group and valency that alkali steels 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 construction of neutral Na is1s22s22p63s1but in Na+ it loser one electron, for this reason it has a brand-new electron construction of1s22s22p6means Na+ has actually (2+6=8) outermost electrons which provides it stable. Thus, sodiumion (Na+) has actually eight valence electrons.

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Na+ valency is no zero choose noble gas together their outermostshell has 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 no zero.

Chemical Properties

Sodium (Na) atom
Atomic number11
Number the protons11
Number that electrons11
Electron configuration1s22s22p63s1
Valence electrons1
Valence/Valency1

Sodium-ion (Na+)
Number that electrons10
Electronic configuration1s22s22p6
Valence electrons8
Valence/Valency+1