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Select one property of Aluminium that makes it suitable for making overhead electric cables.

Physics

ScanSolve AI Answer

Answer

35.5

Step-by-step solution

4 steps

  1. Identify the mass and abundance of each isotope.

    Isotope A has a mass of 35 and an abundance of 75%.
    Isotope B has a mass of 37 and an abundance of 25%.

  2. Use the formula for Relative Atomic Mass (R.A.M), which is the sum of (isotope mass ×\times fractional abundance) for all isotopes.

    R.A.M=(Mass of Isotope A×Abundance of Isotope A)+(Mass of Isotope B×Abundance of Isotope B)\text{R.A.M} = (\text{Mass of Isotope A} \times \text{Abundance of Isotope A}) + (\text{Mass of Isotope B} \times \text{Abundance of Isotope B})

  3. Substitute the given values into the formula.

    Remember to convert percentages to decimals.

    R.A.M=(35×0.75)+(37×0.25)\text{R.A.M} = (35 \times 0.75) + (37 \times 0.25)

  4. Perform the multiplication and addition.

    R.A.M=26.25+9.25\text{R.A.M} = 26.25 + 9.25 R.A.M=35.5\text{R.A.M} = 35.5

    The Relative Atomic Mass of the element is 35.5.

    35.535.5
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