An atom has electronic configuration 2, 8, 7. What is the atomic number of this element?

Write the electronic configuration of chlorine atom.

Write the electronic configuration of sodium atom.

Which group-2 element has a slightly different electronic configuration than the rest of the elements?

The correct electronic configuration of copper atom is

Which o the following is the ground state electronic configuration of Cr (atomic number of Cr is 24)-

Write the electronic configurations of the elements with the atomic numbers 61, 91, 101, and 109.

Write electronic configuration of the element with atomic number 35. what will be the stable oxidation states of the element?