The total number of electrons present in the first twenty elements of the periodic table is
READ MORE +Periodic Table MCQs
An element with atomic number 40 is placed in period
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The inert gas which lies in third period is
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The longest period of the Modern Periodic Table is period
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According to Medeleev’s Periodic Law, the elements were arranged in the periodic table in the order of
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Which of the following statements is not a correct statement about the trends when going from left to right across the periods of the periodic table?
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The atomic numbers of the elements Na, Mg, K and Ca are 11, 12, 19 and 20 respectively
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An element X forms an oxide X^g. In which group of Modem periodic table is this element placed?
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The electronic configuration of the atom of an element X is 2, 4, 8. In the modern periodic table, the element X is placed in
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The Newlands Law of Octaves for the classification of elements was found to be applicable only up to the element
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Which one of the following does not increase while moving down the group of the periodic table?
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The element A, B, C, D and E have atomic numbers 9, 11, 17, 12 and 13 respectively. The pair of elements which belongs to the same group of the periodic table is
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