question_answer 41)

  Which of the following symbols of elements are incorrect? Give their correct symbols. (a) Cobalt CO                      (b) Carbon c                       (c) Aluminium AL               (d) Helium He (e) Sodium So

Answer:

  (a) Cobalt CO is incorrect symbol. Its correct symbol is Co. (b) Carbon c is incorrect symbol. Its correct symbol is C. (c) Aluminium AL is incorrect symbol, Its correct symbol is Al. (e) Sodium So is incorrect symbol. Its correct symbol is Na. (It is derived from Latin name 'Natrium'). (d) Helium, He is the correct symbol.