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प्रश्न
The scientist who propounded the modern periodic law is ______.
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उत्तर
The scientist who propounded the modern periodic law is Dimitri Mendeleev.
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संबंधित प्रश्न
On which side of the periodic table will you find non-metals?
(b) What is the number of elements is 3rd period, the modern periodic table?
What are the advantages of the periodic table?
Consider the following elements:
20Ca, 8O, 18Ar, 16S, 4Be, 2He
Which of the above elements would you expect to be:
(i) very stable?
(ii) in group 2 of the periodic table?
(iii) in group 16 of the periodic table?
Correct the statement.
Transition elements are placed at extreme right of the periodic table.
Write a short note.
Position of isotopes in the Mendeleev’s and the modern periodic table.
Find the correlation:
Mendeleev’s periodic table : atomic mass : : Modern periodic table : _______
Right or wrong sentence.
The modern periodic table shows the molecular masses of the elements in each frame.
Elements in the modern periodic table are arranged in ______groups and______ periods.
The element which has the least tendency to lose electrons is ______
