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MBD PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
- How many atoms of fluorine are there in 1.9 xx 10^(-6) gms of fluroine...
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- Why Mg^(2+) ion is smaller than O^(2-) althrough both have the same el...
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- Why ionosation energy of magnesium is greater than aluminium ?
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- Why electron affinity of Be is zero ?
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- What are sigma and pi-bond's ? What is the bond angle and shape of the...
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- Why electron affinity of nitrogen is zero.
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- What is the sum of the oxidation number of all the atoms in a neutral ...
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- Explain with reason : Alkali metals do not form dipositive ions.
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- Expalin with reason : Electronegativity values of inert gases are zero...
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- Justify the position of carbon and lead in the periodic table on the b...
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- The electronic configuration of an element in 1s^2 ,2s^2 , 2p^6 , 3s^2...
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- Explain on the basis of electronic configuration why fluorine and chlo...
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- The electronic configuration of an element in 1s^2 ,2s^2 , 2p^6 , 3s^2...
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- Among the four halogens name one which has : highest value of electr...
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- What is oxidation number ?
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- Explain why the ionisation energy of nitrogen is more than that of oxy...
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- The atomic numbers of N,Be and Mg are 7, 4 and 12 respectively. Explai...
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- Electron affinities of halogens are high why ?
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- Why is electron affinity of Si^(14) is greater than of p^15 ?
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- The more electronegative element is :
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