Ch.6 - Electronic Structure of Atoms

Brown - Chemistry: The Central Science 14th Edition

Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232당신이 사용하는 게 아니라요?교과서 변경

Brown 14th Edition

Ch.6 - Electronic Structure of Atoms

문제 39b

6장, 문제 39b

(b) Is this line in the visible region of the electromagnetic spectrum?

검증된 단계별 안내

Understand the electromagnetic spectrum: The electromagnetic spectrum includes all types of electromagnetic radiation, ranging from gamma rays to radio waves. The visible region is a small part of this spectrum, typically ranging from wavelengths of about 380 nm to 750 nm.

Identify the wavelength of the line in question: To determine if a line is in the visible region, you need to know its wavelength. This information is usually provided in the problem or can be calculated using other given data.

Compare the wavelength to the visible range: Once you have the wavelength, compare it to the visible range (380 nm to 750 nm). If the wavelength falls within this range, the line is in the visible region.

Consider the context of the problem: Sometimes, additional context or information is provided that can help confirm whether the line is visible. For example, if the problem involves a known visible light source, this can be a clue.

Reflect on the implications: Understanding whether a line is in the visible region can have practical implications, such as determining the color of light emitted or absorbed by a substance.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

54s

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Electromagnetic Spectrum

The electromagnetic spectrum encompasses all types of electromagnetic radiation, arranged by wavelength or frequency. It includes gamma rays, X-rays, ultraviolet light, visible light, infrared radiation, microwaves, and radio waves. The visible region specifically refers to the wavelengths that can be detected by the human eye, typically ranging from about 400 to 700 nanometers.

Visible Light

Visible light is the portion of the electromagnetic spectrum that is visible to the human eye. It consists of various colors, each corresponding to a specific wavelength, with violet having the shortest wavelength and red the longest. Understanding the characteristics of visible light is essential for determining whether a specific line or wavelength falls within this range.

Wavelength and Frequency

Wavelength and frequency are fundamental properties of electromagnetic waves. Wavelength is the distance between successive peaks of a wave, while frequency is the number of peaks that pass a point in one second. These two properties are inversely related; as wavelength increases, frequency decreases, and vice versa. This relationship is crucial for identifying whether a specific line is in the visible spectrum.

관련 실천

교과서 질문

(a) Using Equation 6.5, calculate the energy of an electron in the hydrogen atom when n = 3 and when n = 6. Calculate the wavelength of the radiation released when an electron moves from n = 6 to n = 3.

901

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교과서 질문

The visible emission lines observed by Balmer all involved nf = 2. (b) Calculate the wavelengths of the first three lines in the Balmer series—those for which ni = 3, 4, and 5—and identify these lines in the emission spectrum shown in Figure 6.11.

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교과서 질문

The visible emission lines observed by Balmer all involved nf = 2. (a) Which of the following is the best explanation of why the lines with nf = 3 are not observed in the visible portion of the spectrum: (i) Transitions to nf = 3 are not allowed to happen, (ii) transitions to nf = 3 emit photons in the infrared portion of the spectrum, (iii) transitions to nf = 3 emit photons in the ultraviolet portion of the spectrum, or (iv) transitions to nf = 3 emit photons that are at exactly the same wavelengths as those to nf = 2.

1104

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교과서 질문

Indicate whether energy is emitted or absorbed when the following electronic transitions occur in hydrogen: (a) from n = 2 to n = 3 (c) from the n = 9 to the n = 6 state.

752

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교과서 질문

Consider a transition of the electron in the hydrogen atom from n = 8 to n = 3. (b) Will the light be absorbed or emitted?

1347

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교과서 질문

Is energy emitted or absorbed when the following electronic transitions occur in hydrogen? (b) from an orbit of radius 0.846 nm to one of radius 0.212 nm

1575

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