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Why are the hydrogen Balmer lines strong in the spectra of medium-temperature stars and weak in the spectra of hot and cool stars?
They are like this due to the fact that most hydrogen atoms are ionized which makes a weaker balmer line. The strength of the Balmer line is sensitive to temperature so that's why it occurs more in the middle. The hot end of the hydrogen is low Balmer line due to them being in the ground state.
Hope that's answers it =]
-CRS
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Why are the hydrogen Balmer lines strong in the spectra of medium temperature stars and weak in the spectra of hot and cool stars?
Balmer lines are produced by colliding hydrogen atoms with electrons excited to 2nd energy level. Cool stars don't have enough collision to excite the electrons, hot stars have too much collision and excite the electrons beyond 2nd energy level.
What are the atmospheres of the outer planets like?
Outer planets like Jupiter and Saturn have thick atmospheres composed mostly of hydrogen and helium. Uranus and Neptune have atmospheres rich in frozen ices like water, ammonia, and methane. Strong winds, massive storms, and unique cloud formations characterize the atmospheres of these outer planets.
Why does Jupiter have metallic hydrogen in central interior?
Jupiter is a very massive planet composed mostly of hydrogen. It is massive enough that below a certain depth the pressure from the overlying layers is enough to convert the hydrogen into its liquid metallic state.
What causes Jupiter's magnetic field?
Jupiter's magnetic field is caused by the flow of electrically conducting material in its metallic hydrogen layer. As Jupiter rotates, this material generates a magnetic field. The combination of the planet's rotation and its metallic hydrogen layer results in its strong magnetic field.
Why does Jupiter have such a powerful magnetic field?
Jupiter's magnetic field is 14 times as strong as the Earth's, ranging from 4.2 gauss (0.42 mT) at the equator to 10-14 gauss (1.0-1.4 mT) at the poles, making it the strongest in the Solar System. This field is generated by eddy currents-swirling movements of conducting materials-within the metallic hydrogen core.
Why are the hydrogen Balmer lines strong in the spectra of medium temperature stars and weak in the spectra of hot and cool stars?
Balmer lines are produced by colliding hydrogen atoms with electrons excited to 2nd energy level. Cool stars don't have enough collision to excite the electrons, hot stars have too much collision and excite the electrons beyond 2nd energy level.
What Spectral Class does Medium-strength Balmer lines strong helium lines belong to?
a balmer line is the ghostly remnants of a poltergeist. They float around your house and murder your pet kitten.
Why do stars of spectral class M not show strong lines of hydrogen in their spectra?
Stars of spectral class M have cooler temperatures compared to stars of other spectral classes, causing their hydrogen lines to weaken and be less prominent in their spectra. The lower temperature results in lower energy levels, making it more difficult for hydrogen atoms to transition between energy levels and emit or absorb light in the hydrogen spectral lines.
Is a hydrogen a very strong dipole-dipole force?
The hydrogen bond is not strong.
Hydrogen bonding is a strong convalent bond?
No. Hydrogen bonding is a strong intermolecular force. It is not a true bond.
Is hydrogen bromine basic?
No. Hydrogen bromide is a strong acid.
Who of the following is not a strong electrolyte hydrogen chloride hydrogen fluoride hydrogen bromide hydrogen iodide?
Hydrogen fluoride is not a strong electrolyte. This is because it does not fully dissociate into ions when dissolved in water, unlike hydrogen chloride, hydrogen bromide, and hydrogen iodide.
What metals will evolved hydrogen when reacted to strong base?
Aluminum is a silvery metal that will evolve hydrogen gas when reacted with a strong acid. Aluminum will also evolve hydrogen gas as a product of its reaction with a strong acid.
What is the strong chemical?
Hydrogen compound
The weakest hydrogen line stars are classified as?
The weakest hydrogen line stars are classified as Class V in the Morgan-Keenan (MK) system of stellar classification. These stars have very weak or no hydrogen lines in their spectra, indicating low surface temperatures and the presence of strong molecular absorption bands. Class V stars are typically red or brown dwarf stars.
Is hydrogen a rectant?
Yes, hydrogen can be a strong reactant with some other substances.
What hydrogen bromide acid or strong base?
Hydrogen bromide is considered an acid because it can donate a proton in a chemical reaction. It is not a strong acid but rather a weak acid. Strong bases, on the other hand, are substances that readily accept protons in a reaction.
