How to find valency of am …

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How to find valency of am atom.

Posted by Alishan Ansari 3 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Somya Methwani 3 years, 7 months ago

We can find the valency of an atom by its atomic number . With the help of atomic number we will fill the K, L and M shells with the k shell with the help of 2n² law and the rest shells with octat law and after filling the number of electrons in the last shell decide the valency... If it satisfy the laws and have 8 or 2 electrons in the last shell then it is a balanced atom but if not then the number of electrons in last shell are the valence electrons. For eg. Sodium Atomic number 11 Configuration - 2,8,1 ( valence electrons - 1) To balance sodium now according to octat law its better to give 1 electron to other then having 7 electrons so if gives 1 electron to other it will have a positive charge • Na+ that's why.. Chlorine as like it needs 1 electron to balance its atom so if the electron is taken then it contains negative charge..so Cl- It will be my pleasure if u get it

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Posted by Pandey Ji 5 months, 3 weeks ago

CBSE > Class 10 > Science