Question
Which important property did Mendeleev use to classify the elements in his periodic table?
Solution
Atomic mass.
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Atomic mass.
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These are the elements of the third short period in the periodic table.
Give the ‘liquid elements’ in the periodic table.
Mercury and Bromine.
What is valency of an element?
Valency of an element is defined as the combining power of element. As, the number of electrons gained or lost or shared with other atoms in the formation of compounds.
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