Tag: elements

Which set of elements has a strong tendency to form cations? Or which of the elements are the most electropositive elements?

The elements belonging to Group 1 and group 2 of periodic table has the strong tendency to form cations. The reason behind this tendency is that the elements belonging to group 1 and 2 have one and two valance electrons respectively. By loosing the valence electrons, they will aquire noble gas configuration. It is easy

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Why the chemical bonding takes place?

Kossel and Lewis in 1916 Developed the theory for the bond formation after watching the behavior of noble gases. The noble gases were inert in behavior and do not react with any substance. Kossel and Lewis found that the Octateof noble gases was complete so they do not react. They gave the theory that the

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What are the Differences between elements, compounds, and mixtures ?

In our daily life we come across different kind of particles, some look alike and some we know by common names. tody we are going to arrange almost all the particles around us. Elements :- it is the purest form of matter which has only one kind of atoms. There are 118 elements known till

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what is valency ? how to calculate it?

Valency :- “It is the combining capacity of an atom”. it also indicates the number of electrons that can be gained , lost or shared . It decides that how many bonds can be formed, it gives the idea of molecule formation and the type of bond formed. calculation of valency is a simple task

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