im not sure but i guess a teacher should know
For A+ the answer is False. Your Welcome fellow cheaters xD.
These designations have to do with the appearance of spectral emission lines, which were said to be "sharp, principal, diffuse and fundamental", before the nature of the electron transition that gave rise to them was properly understood.The choice of letters s, p, d, f originates from a now-obsolete system of categorizing spectral lines as "sharp", "principal", "diffuse" and "fundamental" (or "fine").[Cf. 'Related link' at left of this answer: Naming of s, p, d, f -orbitals].
light
spectrometers split light, then the spectral lines show , and you can use spectral analysis to find out what elements are making the light.
The Maximum spectral response of the germanium and silicon is in the x-ray region
Spectral lines are produced by electrons moving from high energy orbitals to lower energy orbitals. Electrons have a quality called "spin" - they either spin "up" or "down". The spin of an electron interacts with the applied magnetic field. As a result, where there was one transition from a higher to a lower orbital, the interaction between the electron spin and the applied magnetic field creates two slightly different energy transitions, one for the spin "up" electrons and the other for the spin "down" electrons. This is what produces two spectral lines in place of the original one line.
it determines their composition and age and direction of shift
Spectral interference occurs when spectral lines overlap. Inductively-coupled plasma mass spectrometry has more spectral interference as its higher energy allows more electron transitions.
The cause is the transition of electrons after the interaction with a photon.
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If the transition is directly from level 4 to level 1, a single photon - in a single frequency - is emitted. However, it is also possible that an electron falls first from level 4 to level 3, and then from level 3 to level 1, for example. In this case, more than one photon - of different frequencies - can be emitted.
For A+ the answer is False. Your Welcome fellow cheaters xD.
These designations have to do with the appearance of spectral emission lines, which were said to be "sharp, principal, diffuse and fundamental", before the nature of the electron transition that gave rise to them was properly understood.The choice of letters s, p, d, f originates from a now-obsolete system of categorizing spectral lines as "sharp", "principal", "diffuse" and "fundamental" (or "fine").[Cf. 'Related link' at left of this answer: Naming of s, p, d, f -orbitals].
Elements have a number of spectral lines because of the number of energy levels and electrons. An electron falling from n=2 to n=1 gives one line, and if it falls from n=3 to n=1, it gives yet another line, and so on.
Since the K is 1 level below the L, only one photon (at 1 specific wavelength) will emit. So you will only see 1 spectral line.
From higher to lower energy levels
what is spectral evidence Spectrum (spectral) refers to different frequencies of light associated with a substance.