Question

(a) Name metals among first five elements of the Modern Periodic Table.
(b) Write their chemical symbols.
(c) Write the formula of their oxides.

Answer 1

(a) First five elements in the Modern Periodic Table are : Hydrogen, Helium, Lithium, Beryllium and Boron. Among these, Lithium and Beryllium are metals.
(b) The chemical symbols of metallic elements are, Li and Be
(c) The formula of the oxides of these elements are :
`Li_(2)O" (Lithium oxide) and "BeO` (Beryllium oxide).