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LAKHMIR SINGH & MANJIT KAUR-PERIODIC CLASSIFICATION OF ELEMENTS-Exercise
- Raghav is a student of class X who was trying to convert the groundnut...
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- Reshma is the student of class X in a city school. One day she was sit...
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- Given alongside is a part of the periodic table: As we move horizont...
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- How would the tendency to gain electrons change on moving from left to...
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- How would the tendency to lose electrons change as we go from left to ...
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- What property do all elements in the same column of the periodic table...
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- What property do all the elements in the same group of the periodic ta...
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- (a) What is the number of valence electrons in the atoms of first elem...
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- State whether the following statement is true of fals: On going down...
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- How does the valency of elements vary is going down a group of the per...
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- Name the element which is in: (a) first group and third period: (b) ...
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- How do electronic configurations of elements change in second period o...
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- Arrangement the following elements in increasing order of their atomic...
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- Arrange the following elements in the increasing order of their metall...
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- Rewrite the folowing statements after correction if necessary: (i) ...
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- Fill in the blanks in the following statements: (a) The horizontal r...
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- Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to...
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- (a) How does the size of atoms (atomic size) generally vary in ging fr...
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- In the following diagram for the first three periods of the periodic t...
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- The elements X,Y and Z belong to groups 2,14 and 16 respectively of th...
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