Potassium, a chemical aspect with a price K, is among the highlyreactive alkali metals of team 1 v atomic number 11 in the periodic table. Potassiumis not found in a complimentary state in nature because of its high reactivity actions so the it is abstracted from different compounds (mostly indigenous salts).

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As we know how muchpotassiumis being provided in the world ofchemistry, so we must have very an excellent proper information about its digital properties to make it through in the civilization of chemistry and that’s why you are here toknow what valence electrons and valency of salt are, aren’t you? but for thisyou need to know what these two terms are, so without wasting her time let"s gofor it,

Difference between valence electrons and valency

Valence electrons room the total variety of electrons presentin the outermost shell of one atom (i.e. In outermost orbital). The valenceelectrons for a neutral atom is constantly definite, it can not be differed (more orless) in any condition for a particular atom and also may or no be equal to itsvalency.


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

Potassium (K) valence electrons

There space four straightforward steps to find out the valence electron forpotassiumatom i beg your pardon are:

Step 1: discover the atom Number


To find out the atomic variety of potassium, we have the right to use the periodictable. V the assist of the regular table, us can easily see that the atomic number of potassiumis 19. As its atomic number is 19, it has actually a total of 19 protons, and forneutral potassium, the number of protons is always equal to the variety of electronsi.e. 19 electrons in the nucleus.

Step 2: compose Electron Configuration


Electron configuration is the plan of electrons on theorbitals. The potassiumatom has a total of 19 electrons, so we have to put 11electrons in orbitals. The first two electrons will certainly go in the 1s orbital together Sorbital deserve to hold a maximum of two electrons only. The next two will go in 2sorbital and the next six electrons will certainly go in 2p orbital together P orbital deserve to onlyhold a best of 6 electrons. Again 2 electrons in 3s and six in 3p and also remaining one electron will go in 4s orbital. Now wehave,

Potassium electron configuration K (19) =1s22s22p63s23p64s1(completeconfiguration) or4s1(condensed configuration).

Step 3: determine Valence Shell

As us know, the valence covering of one atom deserve to be found from the highest variety of principle quantum numbers which is to express in the hatchet of n, and in1s22s22p63s23p64s1, the greatest value the n is 4 so the the valence covering of K is 4s1.

Step 4: find Valence Electrons

The total variety of electrons existing in the valence shellof one atom is called valence electrons, and there is only one electron presentin the valence shell ofpotassium(4s1). Thus,potassiumhas only one valenceelectron.

Valency the Potassium (K)

There are numerous different ways to find out the valency of atom which reflects the ability of an atom come bond with other atoms. Valence describeshow quickly 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 an additional atom.

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

Alkali metals likepotassiumreached the secure (nearest inertgas configuration) by shedding one outermost electron. So that the valency ofpotassium(K) is 1.

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

Valence electrons and valency of K+

Potassium-ion K+ method it has lost one electron and has only18 electron in the orbitals. The electron construction of neutral K is1s22s22p63s23p64s1but in K+ it loses one electron, therefore it has a brand-new electron configuration of1s22s22p63s23p6means K+ has actually only (2+6 = 8) outermost electron which renders it stable. Thus,potassiumion (K+) has eight valence electrons.

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K+ valency is no zero like noble gas as their outermostshell has eight electrons. Once apotassiumatom loser one electron, a K+ ion is produced and also that’s what valency is. So the K+ valency is +1, not zero.

Chemical Properties

Potassium (K) atom
Atomic number19
Number of protons19
Number that electrons19
Electron configuration1s22s22p63s23p64s1
Valence electrons1

Potassium-ion (K+)
Number the electrons18
Electronic configuration1s22s22p63s23p6
Valence electrons8