The elements in the same team have 2 things in common.

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Common valence electrons andCommon properties


All the elements of 1st group (H, Li, Na, K, Rb, Cs, Fr) have actually one valence electron.In other words, these aspects have just one electron in your outermost orbit.

Also, the facets lying in the same group have usual properties.For example, Group 1 aspects (lithium, sodium, potassium, rubidium, cesium and francium) have comparable physical properties like, metallic luster, softness, etc.Also they have comparable chemical properties. Because that example, all the alkali metals (group 1 elements) are very reactive come water.

These space the team 2 elements All the group 2 elements have 2 valence electron (or 2 electron in outermost orbit).
Plus, these group 2 elements likewise show comparable physical and also chemical properties.Thus every the elements of group 2 have actually same number of valence electrons (i.e 2) and also they have typical properties.Similarly,

Example #3

All the elements of 13th team have 3 electrons in that is outermost orbit.
They likewise show similar properties like great electrical conductivity, higher melting and boiling point, comparable chemical reactivity, etc.Thus all the elements of team 13 have actually same number of valence electron (i.e 3) and also they have comparable properties.

Example #4

All the elements of 14th team have 4 electron in that is outermost orbit. 
They type oxides that the type MO and also MO2 (like CO, CO2, SiO2, PbO2, etc). Hence, every the elements of team 14 have actually the same number of valence electron (i.e 4) and they have usual properties.

Example #5

All the elements of 15th team have 5 electrons in that is outermost orbit.
And lock have similar chemical properties.

Example #6

All the facets of 16th group have 6 electron in its outermost orbit.
These facets are found in your polyatomic state, they have comparable outer electron construction ns2 np3, and couple of other similar properties.Thus, every the elements of team 16 have actually the same number of valence electron (i.e 6) and they show usual properties.

Example #7

All the aspects of 17th group have 7 electrons in that is outermost orbit. 
Elements of group 17 are very electronegative and have higher ionisation enthalpy. Castle react through water and kind halides.Thus all the elements of team 17 have the same variety of valence electrons (i.e 7) and they show common properties.

Example #8

All the aspects of 18th team have 8 electrons in that outermost orbit. 
All the elements of the 18th team have totally filled valence electrons and also they room chemically inert. These aspects are likewise known together Noble gases.Hence they have actually the same variety of valence electrons plus lock show similar properties.(Note: 13th group elements have 3 electrons in external shell, no 13.14th group facets have 4 electrons in external shell, no 14.15th group aspects have 5 electrons in external shell, no 15.16th group aspects have 6 electrons in external shell, no 16.17th group aspects have 7 electron in outer shell, no 17.18th group aspects have 8 electrons in outer shell, not 18.)


Elements of d-block and f-block have some exceptions. These aspects do not show the same variety of outermost electrons as that that their group number.For example, third group elements should have 3 valence electrons, however they have only 2 valence electrons.Similarly, 4th group aspects should have 4 valence electrons, yet they additionally have 2 valence electrons.Even part d-block elements have 1 electron in your outermost orbit.This is due to the fact that the d-block facets have outermost electron in s-orbitals and d-orbitals. (If you perform not know around orbitals, visit here)Also this d-block aspects have incomplete d-orbitals. Thus electron of both s-orbitals and d-orbitals get involved in chemistry reaction.Similarly, f-block elements have incomplete f-orbitals.And here also, the electrons of both s-orbitals and f-orbitals get involved in chemistry reaction.Hence d-block and f-block aspects have variable valency or different valence electrons various other than the group number.)
Confused?? Checkout Interactive regular table (where you will uncover the setup of electrons because that each element.)
Also visit: What do periods ~ above the regular table represents?

Final words

Modern regular table consist of groups and periods.The upright columns are referred to as groups. The facets which are in the same teams have the same number of valence electrons (i.e same variety of electrons in the outermost shell).Also they possess almost comparable properties.Yes there are also couple of exceptions in the elements of d-block and also f-block. But in general, for the main group aspects (s-block and also p-block), the elements of same team have the very same valence electrons and common properties.I expect you have plainly understood what aspects in the same group have in common.If girlfriend have any kind of doubts, feel cost-free to questioning me in the comments below.Also permit me know, has this short article helped friend or not?

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