Tagged: lanthanides

October 7, 2018

Classification of elements in Long-form periodic table, Ionization Energy and Oxidation numbers

Elements are arranged in ascending order of their atomic number and according to their electronic configurations, the sequence of elements agrees with the Auf-bau principle, The long-form periodic table is classified into 4 blocks which...

The Matter

November 2, 2014

The description of the modern periodic table, Why is the modern periodic table important?

The modern periodic table consists of 7 horizontal periods and 16 vertical groups (18 vertical columns). The elements of the modern periodic table are classified into 4 blocks (s, p, d, and f).