Q18 Two elements P’ and 'Q’ belong to the same period of the modern periodic table and are in group 1 and group 2 respectively. Compare the following characteristics in tabular form.

(a) the number of electrons in their atoms.
(b) their tendency to lose electrons.
(c) their metallic characters.
(d) formation of their oxides.
(e) formulae of their chlorides.

Solution