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CBSE Notes 2011-2012

In Mendeleev's Periodic Table, gaps were left for the elements to be discovered later. Which of the ...

Multiple choice question

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 ?

unknown

Germanium

unknown

Chlorine

unknown

Oxygen

unknown

Silicon