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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
How does the electronic configuration of an atom relate to its position in the Modern Periodic Table?
How does the tendency of elements to gain electrons change as we move from left to right in a period? State the reason of this change.
On which side of the periodic table will you find non-metals?
Which of the following statement about the modern periodic table is correct?
(a) It has 18 horizontal rows known as periods.
(b) It has 7 vertical columns known as periods.
(c) It has 18 vertical columns known as groups.
(d) It has 7 horizontal rows known as groups.
Which element has two shells, both of which are completely filled with electrons?
Name the type of elements which have two electrons in the outermost orbit.
Write the number of protons, neutrons and electronic configuration of \[\ce{_19^39K, _15^31P}\]. Also state their position in periodic table.
Element ‘X’ forms a chloride with the formula XCl2, which is solid with a high melting point. X would most likely be in the same group of the periodic table as: ______
On moving from left to right in a period in the periodic table, the size of the atom ______
The maximum number of electrons that can be accommodated in s, p,d, and f subshells are ______.
