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प्रश्न
Name two elements whose properties were predicted on the basis fo their positions in Mendeleev's periodic table.
उत्तर
Gallium (Ga) and scandium (Sc) are the two elements whose properties were predicted on the basis of their position in Mendeleev's periodic table.
संबंधित प्रश्न
Why do you think the noble gases are placed in a separate group?
Which of the following statements is not a correct statement about the trends when going from left to right across the periods of periodic Table.
In the classification of the them known elements, Mendeleev was guided by two factors. What are those two factors?
Describe two anomalies of Mendeleev's periodic classification of elements.
Which group of elements was missing from Mendeleev's original periodic table?
In Mendeleev's periodic table, gaps were left for the elements to be discovered later on. An element which found a vacant place in the periodic table later on is:
(a) Be
(b) Si
(c) Ge
(d) Se
Why could no fixed position be given to hydrogen in Mendeleev's periodic table?
The correct formula of the oxide of Eka-aluminium element predicted by Mendeleev was:
(a) EaO3
(b) Ea3O2
(c) Ea2O3
(d) EaO
Eka boron : Scandium : : Eka Aluminum : _______
Write the name.
The family of group 1 elements.
