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Earn 100
The lightest liquid metal is _____.
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Important Questions on Classification of Elements and Periodicity in Properties
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Which statement is not true about noble gases?
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Elements of which group form anions most readily?
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On moving horizontally across a period, the number of electrons in the outermost shell increases from _____ to _____.
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Which of the following is not a representative element?
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The scientist who made maximum contribution towards periodic table was _____.
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Which of the following elements A, B, C, D and E with atomic number 3, 11, 15, 18 and 19 respectively belong to the same group?
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Element A belongs to Group VII in p-block and element B belongs to Group I in s-block of the periodic table. Out of the following assumptions, the correct one is_____.
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The element with atomic number is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
