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what is mean by valency how many energy levels/shells are there in a atom explain Rutherford s atomic model theory and his limitations
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what is mean by valency how many energy levels/shells are there in a a...
The electrons present in the outermost shell of an atom are known as it's valency.
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what is mean by valency how many energy levels/shells are there in a a...
The total number of electron are present in last shell are called valency. there are four shell(K L M N) are present in atom.
Rutherford was take gold thin foil.Gold are malleable metal and wanted to thin layer are possible. and made up znSO4 .
alpha particle were doubly charge of helium ion.
They are mass of 4u .they are considerable amount of energy.
alph particle were deflection by sub atomic particle in gold atom.
OBSERVATION
most alpha particle were straight line through the gold thin foil without deflection.
very few particle were deflection by making small angle.
very few particle were deflection by making angle180.
CoNCLUSION
most part of atom consist a lot of empty space .
very few particle were deflection by making small angl e indicating positively charge present In alpha particle.
very few particle were deflection by making angle indicating the mass concentrate in centre of atom.
LIMITATIONS
If any particle charge uniform circular then loose in the form of radiation(EMW).
it was not explain the results of electron are present in shell/orbit.
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what is mean by valency how many energy levels/shells are there in a atom explain Rutherford s atomic model theory and his limitations
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