Rubidium, a chemical element with a symbol Rb, is among the highlyreactive alkali steels of team 1 v atomic number 37 in the routine table. Rubidium is not found in a totally free state in nature due to its high reactivity behavior so that it is abstracted from various compounds (mostly from salts).

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As we know how much rubidium is being offered in the human being ofchemistry, so we must have very an excellent proper information around its digital properties to survive in the civilization of chemistry and that’s why girlfriend are right here toknow what valence electrons and valency ofrubidiumare, aren’t you? however for thisyou have to know what these 2 terms are, so without wasting her time let"s gofor it,

Difference between valence electrons and also valency

Valence electrons space 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 can not be varied (more orless) in any type of condition for a particular atom and may or not be same to itsvalency.


Valency is characterized as the total number of electrons one atomcan lose, gain, or re-superstructure at the moment of bond development to acquire astable digital 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.

Rubidium (Rb) valence electrons

There room four basic steps to find out the valence electrons forrubidiumatom i m sorry are:

Step 1: discover the atom Number


To discover out the atomic variety of rubidium, we have the right to use the periodictable. Through the assist of the regular table, us can easily see that the atomic variety of rubidiumis 37. As its atom number is 37, it has actually a full of 37 protons, and forneutral rubidium, the variety of protons is always equal to the variety of electronsi.e. 37 electron in the nucleus.

Step 2: write Electron Configuration


Electron construction is the setup of electron on theorbitals. The rubidiumatom has a total of 37 electrons, therefore we have to put 37 electrons 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 certainly go in 2sorbital and also the next six electrons will go in 2p orbital together P orbital can onlyhold a preferably of 6 electrons and so on...
Now wehave,
Rubidium electron configuration Rb (37) =1s22s2p63s2p6d104s2p65s1(completeconfiguration) or5s1(condensed configuration).

Step 3: determine Valence Shell

As we know, the valence covering of an atom deserve to be discovered from the highest variety of principle quantum number which is express in the term of nand in1s22s2p63s2p6d104s2p65s1, the highest possible value of n is 5 so the the valence shell of Rb is 5s1.

Step 4: uncover Valence Electrons

The total variety of electrons existing in the valence shellof an atom is referred to as valence electrons, and there is just one electron presentin the valence shell ofrubidium(5s1). Thus,rubidiumhas only one valenceelectron.

Valency of Rubidium (Rb)

There are countless different means to uncover out the valency of atom which mirrors the capacity of one atom come bond with various other atoms. Valence describeshow conveniently an atom or a totally free radical can incorporate with various 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 said to be stable once its outermost shells haveeight electrons (except H and He). If the total variety of electrons inoutermost shells is in between one to four, the atom has positive valency and ifelectrons are between four to eight, the valency is calculated by subtractingfrom eight and valency is negative. Atom having 4 outermost electronspossess both optimistic and negative valency and atom having actually eight outermostelectrons have actually zero valencies (i.e. Noble gases).

Alkali metals likerubidiumreached the steady (nearest inertgas configuration) by shedding one outermost electron. So the the valency ofrubidium(Rb) is 1.

We can additionally find the valency ofrubidiumwith the aid of a periodic table. Asrubidiumis an facet of team 1 which shown alkalimetals group and valency that alkali metals are always 1.

Valence electrons and valency that Rb+

Rubidium-ion Rb+ means it has lost one electron and also has only 36 electron in the orbitals. The electron configuration of neutral Rb is1s22s2p63s2p6d104s2p65s1but in Rb+ it loses one electron, so it has actually a brand-new electron configuration of1s22s2p63s2p6d104s2p6means Rb+ has actually (2+6=8) outermost electron which provides it stable. Thus,rubidiumion (Rb+) has actually eight valence electrons.

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Rb+ valency is no zero choose noble gas as their outermostshell has eight electrons. As soon as arubidiumatom loser one electron, Rb+ ion is produced and that’s what valency is. So the Rb+ valency is +1 not zero.

Chemical Properties

Rubidium (Rb) atom
Atomic number37
Number of protons37
Number of electrons37
Electron configuration1s22s2p63s2p6d104s2p65s1
Valence electrons1

Rubidium-ion (Rb+)
Number of electrons36
Electronic configuration1s22s2p63s2p6d104s2p6
Valence electrons8