An atom has the symbol .Which value determines the position of the element in the periodic table?
Which of the following is not a noble gas ?
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The element placed with cerium, in the table formed by Newlands' was:
What were the limitations of Mendeleev's periodic table?
Element 'X' has twelve protons in its nucleus.To which group of the periodic table it will belong?
Name the element that first shows some visible metallic properties at room temperature.
Which among the following elements is metalloid?
5 videos|292 docs|59 tests
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5 videos|292 docs|59 tests
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