One atom of an element X has a mass of 9-123- 10-23g- There is only one isotope of X- The element X is -

The correct option is B ManganeseOne atom of an element has a mass of 9.123× 10^ 23g .So, molar mass of the #160;atom is #160; 9.123× 10^ 23× 6.02 ...

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Standard XII

Physics

Electric Field inside a Conductor under Electrodynamic Conditions

One atom of a...

Question

One atom of an element X has a mass of $9.123 \times 10^{- 23} g$ . There is only one isotope of X. The element X is :

Chlorine

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Chromium

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Magnesium

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Manganese

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Solution

The correct option is B Manganese
One atom of an element has a mass of $9.123 \times 10^{- 23} g$ .
So, molar mass of the atom is $9.123 \times 10^{- 23} \times 6.02 \times 10^{23} g m o l^{- 1} = 55$ g.
Therefore, $M n$ has $55$ g molar mass.

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One atom of an element X has a mass of 9.123×10−23g. There is only one isotope of X. The element X is :

The correct option is B ManganeseOne atom of an element has a mass of 9.123×10−23g.So, molar mass of the atom is 9.123×10−23×6.02×1023 g mol−1=55 g.Therefore, Mn has 55 g molar mass.

One atom of an element X has a mass of $9.123 \times 10^{- 23} g$ . There is only one isotope of X. The element X is :

The correct option is B Manganese
One atom of an element has a mass of $9.123 \times 10^{- 23} g$ .
So, molar mass of the atom is $9.123 \times 10^{- 23} \times 6.02 \times 10^{23} g m o l^{- 1} = 55$ g.
Therefore, $M n$ has $55$ g molar mass.