Question
Write the complete symbol for the atom with the given atomic number (Z) and atomic number (A).
(i) Z = 17, A = 35
(ii) Z = 92, A = 233
(iii) Z = 4, A = 9.
Solution
(i) The element with atomic number 17 is Cl. Its symbol is 
(ii) The element with atomic number 92 is U. Its symbol is 
(iii) The element with atomic number 4 is Be. Its symbol is 
