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The velocity of the gas is inversely proportional to the square root of the molar mass of the gass. Heavier molecules tend to travel slow compared to light molecules. Among these, He has the lowest molar mass of 4 g/mol hence this element has the greatest velocity among all molecules given.
Answer:
no, the correct answer is NaCI
Explanation:
you're welcome
The Answer is D cause of the people going back and forth.
