In the periodic table going down in Fluorine group
Modern periodic table is based on the atomic number of the elements.The experiment which proved the significance of the atomic num..
Which of the following is the atomic number of a metal
The heaviest atom amongst the following is
The long form of periodic table has
If an atom has electronic configuration
Which of the following statement is not correct regarding hydrogen atom
The element with configuration
Which of the following pairs has both members from the same period of the periodic table
The elements with atomic number 10,18,36,54, and 86 are all
The most important active step in the development of periodic table was taken by
On moving from left to right across a period in the table the metallic character
The tenth elements in the periodic table resembles with the
Which of the following elements are analogous to the lanthanides
Element of atomic number 6 is placed in
The elements having the electronic configuration, [Kr]
The number of d - electrons in Fe2+ (Z=26) is not equal to the number of electrons in which one of the following
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