Which one of the following is not a borderline element?
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The number of free electrons in the outermost shell of carbon atoms in diamand is
Two or more elements combine to form a
Which of the following elements replaced eka-Aluminium in Mendeleev's Periodic table?
Which of the following metals cannot be easily cut with a knife?
The sigmoid colon is a part of
Crabs belongs to the phylum
Find equation of the perpendicular bisector of segment joining the points (2,-5) and (0,7)?