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Question

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

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Answer

(a) Incorrect, the correct symbol of cobalt is Co.

(b) Incorrect, the correct symbol of carbon is C.

(c) Incorrect, the correct symbol of aluminium is Al.

(d) Correct (He).

(e) Incorrect, the correct symbol of sodium is Na.

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A health food store has a large display of bracelets made of copper metal. The storekeeper claims that the copper atoms from the bracelet diffuse into the body and the wearer is protected against rheumatoid diseases. Kuber wants to buy a bracelet for his grandmother who is suffering from arthritis. But his friend Ramesh suggests him against it. He says that it is a superstitious belief and wearing any metal on the body does not cure someone of the disease. Answer the following questions based on the above information: (𝒊) Do you think that Kuber should agree to Ramesh’s advice and not buy the bracelet? Give one reason. (𝒊𝒊) What values are displayed by Ramesh through his suggestion? (𝒊𝒊𝒊) Suggest one activity to promote these values.

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