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प्रश्न
What name were given by Mendeleev to the then undiscovered element germanium?
उत्तर
Germanium (Ge) as eka-silicon.
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संबंधित प्रश्न
Besides gallium, which other elements have since been discovered that were left by Mendeleev in his Periodic Table? (any two)
How could the Modern Periodic Table remove various anomalies of Mendeleev’s Periodic Table?
The three elements predicted by Mendeleev from the gaps in his periodic table were known as eka-boron, eka-aluminimum and eka-silicon. What names were given to these elements when they were discovered later on?
State the periodic law on which Mendeleev's periodic table table was based. Why and how was this periodic law changed?
Describe two anomalies of Mendeleev's periodic classification of elements.
What name were given by Mendeleev to the then undiscovered element scandium.
How do the properties of eka-aluminium element predicted by Mendeleev compare with the actual properties of gallium element?
Which group of elements was missing from Mendeleev's original periodic table?
State the merits of Mendeleev's classification of elements.
Match the columns.
| Column A | Column B |
| 1) Triads | a) Mendeleev |
| 2) Octave | b) Dobereiner |
| 3) Atomic number | c) Thomson |
| 4) Atomic mass number | d) Moseley |
| e) Newland |
