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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
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.
What property do all elements in the same column of the Periodic Table as boron have in common?
In the classification of the them known elements, Mendeleev was guided by two factors. What are those two factors?
What name were given by Mendeleev to the then undiscovered element germanium?
In Mendeleev's periodic table, why was there no mention of noble gases like helium, neon and argon?
In Mendeleev's periodic table, gap was not left for one of the following elements. This element is:
(a) gallium
(b) beryllium
(c) germanium
(d) scandium
An element X forms an oxide X2O3. In which group of Mendeleev's periodic table is this element placed?
(a) group II
(b) group III
(c) group V
(d) group VIII
Write the name.
The family of group 1 elements.
Write the name.
The family of elements having zero valency.
Write scientific reason.
In a group, the size of the atom increases as it goes down from the top.
