History Of Periodic Table

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1. Dobereiner's triad was based on 
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History Of Periodic Table - Quiz

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2. Position of isotope was a problem in 
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3. The atomic mass of sodium if lithium - mass 7, sodium and potassium mass 39 are triads is 
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4. Merit of mendeleev' periodic table
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5. Who proposed the law of octaves?
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6. Demerit of Newland's classification is 
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Dobereiner's triad was based on 
Position of isotope was a problem in 
The atomic mass of sodium if lithium - mass 7, sodium and potassium...
Merit of mendeleev' periodic table
Who proposed the law of octaves?
Demerit of Newland's classification is 
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