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Because the spectra of elements is determined by the energy of transitions of electrons between two allowed quantum states. Since these energy differences can have only certain specified values, the spectrum consists of lines: The spectrum frequency values intermediate between the lines do not correspond to transitions between any two allowed quantum states and therefore do not appear in the spectrum
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What were dark lines in the spectrum named for?
Dark lines especially in solar spectrum have been named as Fraunhofer lines. These line are good examples for line absorption spectrum
Is an atomic emission spectrum a continuous range of colors?
No. Atomic emission spectrum is non-contiuous and it is named as line spectrum.
Why dark line appears in absorption spectrum?
Dark lines in an absorption spectrum are caused by material existing between the source of light and the observation point. This material can absorb light from the source at specific energies corresponding to the excitation energies of the molecules, atoms, or ions making up the material.
Why is the emission spectrum of hydrogen a line spectrum and not a continuous spectrum?
It's a line spectrum because of the quantization of energy- meaning you only see energy with levels n=1,2,3.... One would never see the energy level n=2.8 for instance- that would be the case if it were continuous rather than a line spectrum.
What is main difference between prism spectrum and grating spectrum?
Prism spectrum is formed due to DISPERSION but grating spectrum is formed due to DIFFRACTION. In prism spectrum we have only one order but in grating spectrum we can have second order too IN prism spectrum we have continuous spectrum but in gratings we have only line spectrum In prism spectrum red end will be closer to the direct ray but in grating spectrum violet end will be closer to the direct ray
Why atom gives the line spectrum and molecule give the band spectrum?
atom give line spectrum because it is sharukh khan and molecule is salman khan that is why it give continiuos spectrum
Why was the study of line spectra useful in the discovery of new elements?
The bright line spectrum is useful because it shows us the different particles in the elements.
What does the term bright line spectrum mean?
There are several kinds of spectra. Bright line spectrum, or emission spectrum, is when light emitted by a gas has an electrical discharge going through it, and it produces a spectrum of just a few isolated parallel lines.
What are some disadvantages of the bohr model?
he failed to explain line spectrum of elements except hydrogen.
What is a line spectrum used for?
The line spectrum is usually used to sort out the atomic fingerprint as the gas emit light at very specific frequencies when exposed to the electromagnetic waves. The electromagnetic waves are usually displayed in form of the spectral lines.
The lines in the bright line spectrum of an atom are due to what?
The atomic line spectrum comes from the emission of atoms of different elements that are in an excited state. Each element has its own unique atomic emission spectrum.
Do all heated elements give off light in the visible spectrum?
no it depends on the energy level the electrons are jumping down to
Who discovered the dark line spectrum?
Lippershey first discovered a dark-line spectrum.
What spectrum is evidence for quantized change?
Line Spectrum
Is an absorption spectrum also called a bright line spectrum?
No, its an absorption spectrum
How do scientists tell difference between elements?
There are many different tests. For example, if you burn some elements they give of light at very specific wavelengths, called an emission spectrum.
Why do different elements give off a colorful light when heated?
The color depends on the lines of the emission spectrum of each different element.
