The mass of a single atom of an element X is 2-65 - 10-23 g- What could this element be-A- NitrogenB- OxygenC- HydrogenD- Phosphorous

The correct option is B OxygenOne atom of the element X has mass = 2.65 ×10^ 23 nbsp;g Thus, 6.022 ×10^23 nbsp;atoms of element X have mass = 2.65 ×10^ 23 ...

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Standard IX

Chemistry

Mole Concept & Avogadro Number

The mass of a...

Question

The mass of a single atom of an element X is $2.65 \times 10^{- 23}$ g. What could this element be?

Nitrogen

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Oxygen

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Hydrogen

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Phosphorous

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Solution

The correct option is B Oxygen
One atom of the element X has mass = $2.65 \times 10^{- 23}$ g

Thus, $6.022 \times 10^{23}$ atoms of element X have mass = $2.65 \times 10^{- 23} \times 6.022 \times 10^{23} = 16 g$

The element with gram atomic mass 16, is oxygen (O).

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The mass of a single atom of an element X is 2.65×10−23 g. What could this element be?

The correct option is B OxygenOne atom of the element X has mass = 2.65×10−23 g Thus, 6.022×1023 atoms of element X have mass = 2.65×10−23×6.022×1023=16g The element with gram atomic mass 16, is oxygen (O).

The mass of a single atom of an element X is $2.65 \times 10^{- 23}$ g. What could this element be?

The correct option is B Oxygen
One atom of the element X has mass = $2.65 \times 10^{- 23}$ g

Thus, $6.022 \times 10^{23}$ atoms of element X have mass = $2.65 \times 10^{- 23} \times 6.022 \times 10^{23} = 16 g$

The element with gram atomic mass 16, is oxygen (O).