Mass spectrum of europium with percent intensity on the vertical axis and mass (amu) on the horizontal axis. The spectrum includes the percent intensities of two isotopes of europium, Eu-151 and Eu-153. To determine the atomic mass of europium. The peak representing Eu-151 has an exact mass of 150.91986 amu and percent intensity is assumed be to exactly 91.610%; the peak representing Eu-153 has an exact mass of 152.92138 amu and percent intensity of 100.00%. Express your answer to two decimal places with the appropriate units.

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Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.