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प्रश्न
The symbols of the elements cobalt, aluminium, helium and sodium respectively written by a student are as
follows. Which symbol is the correct one ?
पर्याय
CO
AL
He
So
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उत्तर
He
He is the correct symbol of helium.
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संबंधित प्रश्न
What do the following symbol stand for?
H
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An element present in the earth’s crust, atmosphere and the human body.
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How many elements are known at present?
