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NARAYNA-CLASSIFICATION OF ELEMENTS AND PERIODICITY -C.U.Q
- Lother Meyer obtained the curve for the known elements by plotting the...
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- In Lother Meyer plot, the peaks are occupied by
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- The law of triad is applicable to a group of a)Cl, Br, I b)C,N,O c)Na...
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- The atomic number of element Unq is:
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- The basis for the classification of elements in the modern periodic t...
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- Considering the chemical properties, atomic weight of Be was corrected...
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- Mendeleev corrected the atomic weight of :
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- Anamalous pair in Mendeleef's table is
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- Eka silicon is now called as
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- The atomic weights of "Be" and "In" were correctly by Mendeleef using ...
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- The plot of sqrt(v) vs Z is
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- The longest and shortest periods are
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- The number of elements present in the fourth period is
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- The general electronic configuration elements of carbon family
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- The strong element of fifth period is
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- Which of these does not reflect the periodicity of the elements.
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- The atomicity of noble gases is
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- The element with atomic numbers 19 is
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- Which of the following pair of atomic numbers represents s-block eleme...
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- The element with electron configuration 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)...
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