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- Complete the table.
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- Symbols of certain elements are given. Write their electronic configur...
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- There are three shells in the atom of element 'X', 6 electrons are pre...
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- Electronic configuration of elements P, Q, R and S are given below. (...
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- An incomplete form of periodic table ia given below. Write the answers...
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- Find the uses of transistion elements familiar to you. Prepare a note ...
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- Collect more information about rare earth elements. Prepare a note and...
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- The vertical columns in the pariodic table are called…..........
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- Find the relation and fill up suitably: Metal and non-metals : Lavoi...
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- In modern periodic table the elements are arranged in the ascending or...
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- The longest period in the modern periodic table is …..............
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- The elements belonging to the group 1,2 and group 13 to 18 are known a...
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- The elements of group 3 to 12 are called …........................
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- Find the relation and fill up suitably: 18th group elements: Noble g...
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- The charged atoms are called ….............
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- Find the odd one out: (He, Ge, Ne, Ar)
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- The electronic configuration of an element is 2,8,8. In which period ...
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- The scientist who proposed the law of octaves?
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- …...................is the biggest element in the modern periodic tabl...
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- The electronic configuration of an element is 2, 7. In which group doe...
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