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Atoms And Molecules Free Doubts and Solutions

CBSE - IX - Chemistry - Atoms and Molecules

How to find no of neutrons without atomic mass? (or) How to find atomic mass without netrons

Asked by md775016 20th August 2017, 5:36 PM
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CBSE - IX - Chemistry - Atoms and Molecules

How to find atomic mass and no.of neutrons in an atom

Asked by md775016 5th August 2017, 12:17 PM
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CBSE - IX - Chemistry - Atoms and Molecules

how many elements and how many parts of nucleus have been discovered till now and name them?

Asked by skbl2009 11th March 2016, 12:11 AM
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CBSE - IX - Chemistry - Atoms and Molecules

what is the chemical formula of lead acetate and ethanoic acid?

Asked by skbl2009 11th March 2016, 12:07 AM
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CBSE - IX - Chemistry - Atoms and Molecules

give 5 examples of diatomic anions 

Asked by harshitgoyal29 2nd March 2016, 7:58 PM
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CBSE - IX - Chemistry - Atoms and Molecules

what is a mole atoms

Asked by digantverma08 3rd November 2015, 7:39 PM
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CBSE - IX - Chemistry - Atoms and Molecules

Symbol of sodium is written as 'Na' and not as 'S'.why ??

Asked by Mathumita 12th October 2015, 8:46 PM
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CBSE - IX - Chemistry - Atoms and Molecules

how can we know about the valency of the elements

Asked by sanjeev.mami 29th September 2015, 10:59 AM
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CBSE - IX - Chemistry - Atoms and Molecules

Define dalton atomic theory ?

Asked by srivathchava15 14th March 2015, 9:01 PM
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CBSE - IX - Chemistry - Atoms and Molecules

Define dalton atomic theory ?

Asked by srivathchava15 14th March 2015, 9:01 PM
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