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प्रश्न
State whether the following statement is true or false:
The symbol of element cobalt is CO.
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उत्तर
False. The symbol for the element Cobalt is Co, as the second letter of the symbol of an element has to be in the lower case.
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संबंधित प्रश्न
Give two examples of the following:
Solid + Liquid mixture
State which element exists in the highest percentage in atmosphere.
State the type of element for the following:
Platinum
State the type of element for the following:
Radon
Define the term ‘valency’.
State the valency of the following metallic element and write symbol with the valency
Aluminium
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Bicarbonate
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Plumbite
What does the symbol '(aq.)' present in a chemical equation, mean?
Write a note on Greem symbols.
