Define Moseley's periodic law .

Define Mendeleev's periodic law?

State the laws/ Define Mendeleev's periodic law,

Define mendeleev's periodic law

Moseleys Law

Define Mendeleev's Periodic Law

State the laws/ Define Moderns periodic Law,

Define the mordern periodic law . Discuss the construction of the long form of the periodic table .

Moseley modified Mendeleev's periodic law based on his observation on the x-ray spectra of elements.The IUPAC name of the element with atomioc number 109 is ……..

Define Modern periodic law? Why many groups and periods are present in the long form of the periodic table?