The energy-level diagram for the atomic emission spectra of an unknown gas is presented in the diagram below. ▶ Part A Submit ✓ Correct Part B Previous Answers Part C n=4 After absorption of the yellow/green light, how many emission lines are possible? n=3 n=2 Initially, electrons are in both the ground and first excited state (n=1 and n=2). A beam of light hits the gas. This beam is a continuous spectrum of yellow/green light (from 495 nm to 590 nm) How many absorption line/s will there be in the spectra? 2 n=1 4.2 eV 2.4 eV 2.0 eV 0 ev byded GEVE OF Color Wavelength Frequency Photon energy violet 380-450 nm 668-789 THz 2.75-3.26 eV blue 450-495 nm 606-668 THz 2.50-2.75 V green 495-570 nm 526-606 THz 2.17-2.50 V yellow 570-590 nm 508-526 THz 2.10-2.17 V orange 590-620 nm 484-508 THz 2.00-2.10 V red 620-750 nm 400-484 THz 1.65-2.00 eV
Atomic Spectra
According to the Bohr model of an atom, the electron in an atom moves around a nucleus in fixed orbits with specific energies known as energy levels. The orbital energies are quantized. The electrons remain in these energy levels until they emit or absorb a photon of a particular wavelength, the quantum of energy. If the electron emits a photon, it then falls back to a lower energy level, and if it absorbs a photon, the electron rises to higher energy levels. The photons released or absorbed in these transitions of an electron are studied and analyzed on a screen as atomic spectra.
Ruby Lasers
Lasers are devices that emit light using atoms or molecules at a certain wavelength and amplify the light to produce a narrow beam of radiation. It works as per the principle of electromagnetic radiation. Their source of emission contains the same frequency and same phase. It was invented in the year 1960 by the great noble scientist, Theodore Maiman.
Balmer Series
The spectrum of frequency observed when electromagnetic radiation is emitted from an atom when it goes from higher energy state to lower state, is known as emission spectrum. This transition occurs when an excited electron moves from higher to lower state. It has many possible electron transitions and each transition has a specific energy difference.
Emission Spectrum
Every state of matter tries to be at minimum potential energy or it can be said that the atoms of element/ substance arrange themselves such that overall energy is minimum.
The energy-level diagram for the atomic
For Part C ONLY!
After absorption of the yellow/green light, how many emission lines are possible?
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