The elements in the same team have 2 things in common.
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Common valence electrons andCommon properties
All the aspects of first group (H, Li, Na, K, Rb, Cs, Fr) have actually one valence electron.In other words, these aspects have only one electron in your outermost orbit.
Also, the aspects lying in the same team have common properties.For example, Group 1 elements (lithium, sodium, potassium, rubidium, cesium and also francium) have similar physical properties like, metallic luster, softness, etc.Also castle have comparable chemical properties. For example, all the alkali steels (group 1 elements) are extremely reactive come water.
These are the team 2 elements All the team 2 elements have 2 valence electron (or 2 electrons in outermost orbit).
Plus, these group 2 elements additionally show similar physical and chemical properties.Thus every the aspects of team 2 have actually same number of valence electron (i.e 2) and also they have typical properties.Similarly,
All the elements of 13th group have 3 electrons in its outermost orbit.
They additionally show similar properties like great electrical conductivity, higher melting and also boiling point, similar chemical reactivity, etc.Thus every the aspects of team 13 have actually same number of valence electron (i.e 3) and also they have comparable properties.
All the elements of 14th team have 4 electrons in that outermost orbit.
They form oxides of the kind MO and also MO2 (like CO, CO2, SiO2, PbO2, etc). Hence, every the facets of group 14 have the same number of valence electron (i.e 4) and also they have common properties.
All the facets of 15th team have 5 electron in that outermost orbit.
And they have similar chemical properties.
All the elements of 16th group have 6 electron in the outermost orbit.
These aspects are discovered in their polyatomic state, castle have similar outer electron construction ns2 np3, and couple of other similar properties.Thus, every the facets of group 16 have actually the same number of valence electrons (i.e 6) and they show common properties.
All the facets of 17th group have 7 electrons in that is outermost orbit.
Elements of group 17 are extremely electronegative and also have greater ionisation enthalpy. They react v water and type halides.Thus all the facets of group 17 have actually the same number of valence electrons (i.e 7) and also they show usual properties.
All the elements of 18th group have 8 electrons in that is outermost orbit.
All the elements of the 18th team have completely filled valence electrons and also they room chemically inert. These elements are additionally known together Noble gases.Hence they have actually the same variety of valence electron plus castle show comparable properties.(Note: 13th group elements have 3 electrons in outer shell, no 13.14th group aspects have 4 electron in external shell, not 14.15th group aspects have 5 electron in external shell, no 15.16th group facets have 6 electron in external shell, no 16.17th group aspects have 7 electron in outer shell, no 17.18th group elements have 8 electrons in external shell, not 18.)
Elements the d-block and also f-block have some exceptions. These elements do not show the same variety of outermost electrons together that the their group number.For example, 3rd group aspects should have 3 valence electrons, but they have actually only 2 valence electrons.Similarly, fourth group elements should have actually 4 valence electrons, yet they also have 2 valence electrons.Even part d-block aspects have 1 electron in their outermost orbit.This is due to the fact that the d-block aspects have outermost electron in s-orbitals as well as d-orbitals. (If you execute not know around orbitals, visit here)Also this d-block elements have incomplete d-orbitals. Thus electrons of both s-orbitals and d-orbitals get involved in chemistry reaction.Similarly, f-block facets have incomplete f-orbitals.And here also, the electron of both s-orbitals and f-orbitals participate in chemistry reaction.Hence d-block and f-block aspects have change valency or different valence electrons various other than the group number.)
Confused?? Checkout Interactive regular table (where girlfriend will uncover the setup of electrons because that each element.)
Also visit: What execute periods on the routine table represents?
Modern regular table consists groups and also periods.The vertical columns are called groups. The facets which are in the same groups have the same variety of valence electron (i.e same variety of electrons in the outermost shell).Also they possess almost comparable properties.Yes there room also few exceptions in the elements of d-block and also f-block. But in general, for the key group aspects (s-block and p-block), the elements of same team have the very same valence electrons and common properties.I expect you have clearly understood what elements in the same team have in common.If girlfriend have any doubts, feel cost-free to questioning me in the comment below.Also let me know, has actually this write-up helped girlfriend or not?
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