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Periodic Table

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Q.1 : Which of the following was postulated by Newlands?
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Q.2 : Up to which element, The Law of Octaves was found applicable?
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Q.3 : At the time of Mendeleev, the number of elements known was:
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Q.4 : The properties of eka-aluminium predicted by Mendeleev are the same as the properties of later discovered element:
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Q.5 : An element having atomic number 15 will show similar chemical properties like:
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Q.6 : Where would you find the element with electronic configuration 2, 8 in the Modern Periodic Table?
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Q.7 : A metal 'M' is in the first group of the Periodic Table. What will be the formula of its oxide?
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Q.8 : An atom of an element has the electronic configuration 2,8,2. To which group does it belong?
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Q.9 : In Mendeleev's Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the Periodic Table later?
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Q.10 : The arrangement of elements in the Modern Periodic Table is based on their:
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