How to find the valency of a compound!!
Ex=aluminate
Plz give the proper explaination with suitable example
Answers
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the no. of electron present in outer most orbit of a shell.
or the numbers of electrons present in bonding .
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Answer:
Hey dear, here is your answer.
What is Valency?.....
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Valency is the measure of the combining capacity of atoms or molecules
The Concept of Valency
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Electrons in an atom are arranged in different orbitals (shells) represented as K, L, M, N, and so on. The electrons present in the outermost shell/orbit of an atom are called valence electrons. The valence electrons take part in any chemical reaction because the outermost orbit usually contains more energy than the electrons present in other orbits.
According to the Bohr-bury scheme, the outermost orbit of an atom will have a maximum of 8 electrons. However, if the outermost orbit is completely filled then very little to no chemical activity is observed in the particular element. Their combining
Examples of Valency
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Valency of Sodium
The atomic number of sodium is 11 (Z=11). The electronic configuration of sodium can be written as 2, 8, 1. 2, 8, 1 electrons are distributed in the shells K, L, M respectively. Therefore, valence electron in sodium is 1 and it needs to lose 1 electron from the outermost orbit to attain octet. Hence, the valency of sodium is 1.