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TARGET PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -Chapter Assessment
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- Electron capacity of N shell is .
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- Identify the odd one out justify. Si, Ge, As, Ga
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- Name the following. The family name of the group 17 elements.
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- True or false. If false, write the correct sentence. Calcium reacts ...
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- Match the following elements given in Column 'A' with its position in ...
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- Give scientific reasons : Elements belonging to the same group have...
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- Give scientific reasons : Atomic radius goes on increasing down a g...
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- What are the demerits of Mendeleev's periodic table?
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- Atomic size of carbon is less than that of boron. Explain the statemen...
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- A' and 'B' are atoms of two elements belonging to period 2. 'A' is in ...
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- The atomic masses of three elements A, B and C having similar chemical...
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- Select the appropriate options and complete the following paragraph. ...
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- A part of periodic table is shown in the adjacent figure. a. Write ...
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- Mendeleev predicted the existence of certain elements not know at that...
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