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प्रश्न
Which one of the following does not increase while moving down the group of the periodic table?
पर्याय
Atomic radius
Metallic character
Valence
Number of shells in an element
उत्तर
Valence
Explanation -
In the modern periodic table, on moving down the group the valency of the elements does not increase.
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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)
What were the criteria used by Mendeleev in creating his Periodic Table?
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.
An atom has electronic configurations 2, 8, 7.
What is the atomic number of this element?
What name were given by Mendeleev to the then undiscovered element germanium?
Why could no fixed position be given to hydrogen in Mendeleev's periodic table?
Eka boron : Scandium : : Eka Aluminum : _______
Match the columns.
| Column A | Column B |
| 1) Eka-aluminium | a) Scandium |
| 2) Eka-Silicon | b) Gallium |
| 3) Eka- boron | c) Germanium |
| d) Beryllium |
Describe the merits of Mendeleev’s periodic table?
