WARM UP 1. Write the chemical symbol for a nitrogen isotope that has 11 neutrons. 2. What is the average atomic mass of magnesium if you determine the.

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Presentation transcript:

WARM UP 1. Write the chemical symbol for a nitrogen isotope that has 11 neutrons. 2. What is the average atomic mass of magnesium if you determine the following data for the isotopes: Mg-24 = 23.985 amu and 18.05% abundant Mg-26 = 25.982 amu and 81.95% abundant

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Planck’s Equation E = hν h = Planck’s constant (6.63 x 10-34 J·s) Energy (in J) of a wave depends on its frequency E = h x c/λ

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WRAP UP Calculate the energy of a wave that has a wavelength of 114.34 nm.