Calculate the Wavelength, in Nanometers, of the Light Emitted by a Hydrogen

question 76

Multiple Choice

Calculate the wavelength, in nanometers, of the light emitted by a hydrogen atom when its electron drops from the n = 7 to the n = 4 principal energy level. Recall that the energy levels of the H atom are given by E_n = -2.18 × 10^-18 J (1/n²) . (c = 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s)

• A) 4.45 × 10^-20 nm
• B) 2.16 × 10^-6 nm
• C) 9.18 × 10^-20 nm
• D) 1.38 × 10¹⁴ nm
• E) 2.17 × 10³ nm

Identify the characteristics and examples of parasites.

Understand the importance of infection control practices and how infections can spread.

Recognize the characteristics of fungi and their role in infections.

Understand diagnostic codes for various infections and conditions.

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