CBSE CBSE Class 9 Science Question Paper SA 2 2012

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CBSE questions

Transcript of CBSE CBSE Class 9 Science Question Paper SA 2 2012

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  • Element Atomic No Mass No Proton NeutronCl 17 - - 18Si - 28 - -F - - 9 10

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  • Cl 17 - - 18Si - 28 - -F - - 9 10

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