Chemistry

Chemistry, 24.07.2019 07:50, Baecool5584

How can the single electron in a hydrogen atom produce all of the lines found in its emission spectrum

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Chemistry, 28.06.2019 09:50, lizzyhearts

Singly ionized helium has a single orbiting electron, so the mathematics of the bohr hydrogen atom will apply, with one important difference: the charge of the nucleus is twice that of the single proton at the center of a hydrogen atom. this changes the energy levels; the magnitude of each energy is greater than the corresponding bohr level by a factor of 22=4: en=−1n2(k(2e)22ab)=4(−13.6ev)n2=−54.4evn2 the balmer and lyman series of spectral lines in hydrogen have analogs in singly ionized helium, but at shorter wavelengths; the photons corresponding to these transitions are beyond the visible-light spectrum. the transitions that end on the n = 4 state produce a set of spectral lines called the pickering series. the visible-light lines in this series were first seen in the light from certain hot stars, but some of the lines overlap the hydrogen balmer series lines, so these lines were initially missed. this led to an initial mischaracterization of the source of the lines. a: the paschen series of wavelengths in the hydrogen spectrum correspond to transitions that end on m = 3. there is a series of wavelengths in the ionized helium spectrum that partially overlap this series, as the pickering series partially overlaps the balmer series. what is the end state for these transitions?

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Physics, 20.08.2019 21:10, drobledo9

The emission spectrum of hydrogen in visible light range shows four sharp colorful lines at the wavelengths of 0.656, 0.486, 0.434, and 0.410 um. (a) pore (i) explain the origin of the emission spectrum using the bohr atom model. determine the energies between the levels that are involved in the emission process

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Chemistry, 05.09.2019 16:20, gamerhunter425

The four lines observed in the visible emission spectrum of hydrogen tell us that: select one: a. the hydrogen molecules they came from have the formula h4. b. we could observe more lines if we had a stronger prism. c. there are four electrons in an excited hydrogen atom. d. only certain energies are allowed for the electron in a hydrogen atom. e. the spectrum is continuous.

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