Name the scientist who prepared modern periodic table.

How does the electronic configuration of the atom of an element relate to its position in the modern periodic table ?

How could the modern periodic law remove various anomalies of Mendeleev’s periodic table? Explain with examples.

In Mendeleev’s periodic table, gap was not left for one of the following elements. This element is :

The Newland’s law of octaves for the classification of elements was found to be applicable only up to the element :