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Q.

Which of the following elements was predicted by Mendeleev to be discovered?


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a

Neon

b

Germanium

c

Tungsten

d

Sodium 

answer is B.

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Detailed Solution

The germanium element was predicted by Mendeleev to be discovered.
Germanium is an element which was discovered by Clemens A. Winkler at Freiberg, Germany, in 1886. Its existence was earlier predicted by Dmitri Mendeleev who also predicted its atomic weight would be about 71 g and that its density would be around 5.5 g/cm3.
 
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