Given that the electronic configuration of an element X is 1s22s22p63s 23p4, it can be deduced that X

P,Q,R and S are metals in the same group in the Periodic Table but in periods 3,4, 5 and 6 respectively which of them loses electrons least readily?

Elements which belong to the same group in the Periodic Table are characterized by

The atom of an element X combines with aluminium (\(_{13}\)AI). What is the formula of the compound formed?

The presence of unpaired electrons in an atom of a transition metal gives rise to