The electron configuration of the starting and ending elements of fourth period are

The electronic configuration of the fourth transition element is

The electronic configuration of the fourth transition element is

Draw the electronic configuration of the period 2 element of first group in the periodic table

Two students were analysing the electronic configurations of the first 30 elements of the Periodic Table as part of an assignment. They found that two elements showed difference from other twenty eight elements. Write their electronic configurations.

The starting element of fifth period is

Write the electronic configuration of second element of group VI-A of the periodic table.

The electronic configuration of the atom of an element X is 2,8,4. In modern periodic table, the element X is placed in