Rubidium, a chemical element with a price Rb, is just one of the highlyreactive alkali metals of group 1 through atomic number 37 in the periodic table. Rubidium is not found in a cost-free state in nature due to its high reactivity behavior so the it is abstracted from various compounds (mostly indigenous salts).

You are watching: How many valence electrons are in rubidium

As we know just how much rubidium is being offered in the civilization ofchemistry, so us must have actually very great 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 ofrubidiumare, aren’t you? but for thisyou need to know what these 2 terms are, so there is no 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 an atom (i.e. In outermost orbital). The valenceelectrons for a neutral atom is constantly definite, it cannot be differed (more orless) in any condition for a specific atom and may or not 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 formation to get astable digital configuration i.e. To complete an octet. The valency of one atom canbe change in different compounds or in chemistry reactions early out to different bondingmechanisms.

Rubidium (Rb) valence electrons

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

Step 1: uncover the atomic Number


To uncover out the atomic variety of rubidium, we deserve to use the periodictable. V the aid of the periodic table, we can easily see that the atomic number of rubidiumis 37. Together its atomic number is 37, it has actually a full of 37 protons, and forneutral rubidium, the variety of protons is constantly equal to the variety of electronsi.e. 37 electron in the nucleus.

Step 2: create Electron Configuration


Electron configuration is the arrangement of electron on theorbitals. The rubidiumatom has actually a complete of 37 electrons, so we need to put 37 electron in orbitals. The an initial two electrons will certainly go in the 1s orbital as Sorbital deserve to hold a preferably of 2 electrons only. The following two will go in 2sorbital and the following six electrons will go in 2p orbital together P orbital can onlyhold a preferably of 6 electrons and so on...
Now wehave,
Rubidium electron construction Rb (37) =1s22s2p63s2p6d104s2p65s1(completeconfiguration) or5s1(condensed configuration).

Step 3: identify Valence Shell

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

Step 4: uncover Valence Electrons

The total variety of electrons current in the valence shellof one atom is called valence electrons, and also there is just one electron presentin the valence shell ofrubidium(5s1). Thus,rubidiumhas just one valenceelectron.

Valency the Rubidium (Rb)

There are plenty of different means to find out the valency of atom which reflects the capability of one atom to bond with various other atoms. Valence describeshow easily an atom or a cost-free radical can incorporate with various other chemical species. Thevalency of one atom is determined based on the variety of electrons lost, gained, or mutual with another atom.

An atom is stated to be stable once its outermost shells haveeight electrons (except H and also He). If the total variety of electrons inoutermost shells is between one come four, the atom has positive valency and also ifelectrons are between four come eight, the valency is calculated by subtractingfrom eight and also valency is negative. Atom having 4 outermost electronspossess both confident and an unfavorable valency and also atom having eight outermostelectrons have zero valencies (i.e. Noble gases).

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

We can additionally find the valency ofrubidiumwith the aid of a regular table. Asrubidiumis an aspect of group 1 which shown alkalimetals group and also valency that alkali metals are constantly 1.

Valence electrons and also valency the Rb+

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

See more: European Capital Named After A Saint Crossword Clue, List Of National Capital City Name Etymologies

Rb+ valency is not zero choose noble gas together their outermostshell has eight electrons. When arubidiumatom loser one electron, Rb+ ion is produced and also that’s what valency is. So that Rb+ valency is +1 not zero.

Chemical Properties

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

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