Potassium, a chemical facet with a prize K, is one of the highlyreactive alkali metals of team 1 through atomic number 11 in the routine table. Potassiumis not uncovered in a cost-free state in nature as result of its high reactivity behavior so that it is abstracted from various compounds (mostly native salts).

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As us know exactly how muchpotassiumis being provided in the human being ofchemistry, so we must have very great proper information about its electronic properties to endure in the world of chemistry and also that’s why you are below toknow what valence electrons and valency of salt are, aren’t you? but for thisyou have to know what these 2 terms are, so without wasting her time let"s gofor it,

Difference in between valence electrons and also valency

Valence electrons space 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 cannot be varied (more orless) in any condition for a specific atom and may or not be same to itsvalency.


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Valency is identified as the total number of electrons an atomcan lose, gain, or re-publishing at the moment of bond formation to acquire 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.

Potassium (K) valence electrons

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

Step 1: discover the atom Number


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To find out the atomic variety of potassium, we can use the periodictable. Through the help of the routine table, us can conveniently see that the atomic variety of potassiumis 19. As its atom number is 19, it has a complete of 19 protons, and forneutral potassium, the number of protons is constantly equal to the number of electronsi.e. 19 electrons in the nucleus.

Step 2: compose Electron Configuration


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Electron construction is the arrangement of electron on theorbitals. The potassiumatom has actually a full of 19 electrons, for this reason we need to put 11electrons in orbitals. The first two electrons will certainly go in the 1s orbital as Sorbital have the right to hold a best of 2 electrons only. The next two will go in 2sorbital and the next six electrons will certainly go in 2p orbital as P orbital deserve to onlyhold a preferably of 6 electrons. Again 2 electrons in 3s and also six in 3p and also remaining one electron will go in 4s orbital. Now wehave,

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

Step 3: identify Valence Shell

As we know, the valence covering of one atom have the right to be discovered from the highest variety of principle quantum number which is express in the term of n, and also in1s22s22p63s23p64s1, the highest possible value that n is 4 so that the valence covering of K is 4s1.

Step 4: find Valence Electrons

The total number of electrons present in the valence shellof an atom is called valence electrons, and also there is only one electron presentin the valence covering ofpotassium(4s1). Thus,potassiumhas just one valenceelectron.

Valency of Potassium (K)

There are numerous different means to uncover out the valency of anatom which mirrors the capability of one atom to bond with various other atoms. Valence describeshow easily an atom or a cost-free radical can integrate with other chemical species. Thevalency of one atom is determined based upon the variety of electrons lost, gained, or common with an additional atom.

An atom is said to it is in stable as soon as its outermost shells haveeight electrons (except H and also He). If the total variety 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 calculation by subtractingfrom eight and valency is negative. Atoms having four outermost electronspossess both hopeful and negative valency and atoms having actually eight outermostelectrons have actually zero valencies (i.e. Noble gases).

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

We can likewise find the valency ofpotassiumwith the help of a routine table. As sodium is an aspect of group 1 which shown alkalimetals group and also valency that alkali metals are constantly 1.

Valence electrons and valency of K+

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

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K+ valency is no zero choose noble gas as their outermostshell has eight electrons. As soon as apotassiumatom loses one electron, a K+ ion is produced and that’s what valency is. So that K+ valency is +1, no zero.

Chemical Properties

Potassium (K) atom
Atomic number19
Number the protons19
Number of electrons19
Electron configuration1s22s22p63s23p64s1
Valence electrons1
Valence/Valency1

Potassium-ion (K+)
Number that electrons18
Electronic configuration1s22s22p63s23p6
Valence electrons8
Valence/Valency+1