Chemistry, asked by irfanali3, 1 year ago

Define periodicity? Explain typical elements

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Answered by Anonymous
2
The quality or character of being periodic , the tendency to recur at intervals is known as periodicity.

Hydrogen, helium and all the elements belonging to the groups headed by lithium, berrylium , boron , carbon , nitrogen oxygen, fluorine and neon in the modern periodic table are often collectively known as typical elements.
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Answered by Deepsbhargav
3
Periodicity __
In the context ofchemistry and the periodic table,periodicity refers to trends or recurring variations in element properties with increasing atomic number. Periodicityis caused by regular and predictable variations in element atomic structure.

Typical element..
 i think my answer is capable to clear your confusion. The third period elements( Na, Mg, Al,Si,P,S,Cl) are called the TYPICAL elements. they are called so because they represent properties of their own group. like if you want to study the properties of group 1, then you must better choose the sodium and u get the clue for others of its family, others are of its type, and hence these elements are called typical elements.

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