91.2 nm
an atom
It's warmed from the surface. Shortwave radiation passes through the atmosphere, or at least about half of it, where it reaches the ground and is absorbed. The ground re-emits it at a longer wavelength, thereby warming the lower atmosphere.
Radiation
Radiation
These stars are so cool that nearly all of the hydrogen atoms are in the ground state. The visible-light Balmer absorption lines of hydrogen are produced by electrons moving from the 1st excited state to a higher orbit. However in M class stars most of the hydrogen is in the ground state, and absorption from the the ground state occurs at ultraviolet wavelengths.
an atom
Solar radiation mostly passes through the atmosphere without heating it, due to its wavelength. It does not pass through the ground, however, and it heats the ground. The ground emits radiation at a wavelength dependent on its temperature. This radiation happens to be in the thermal infrared part of the spectrum, or in other words, sensible heat. Therefore, the atmosphere is heated by the surface, whereupon the heat tends to rise and heat the lower atmosphere.
Unless you mean hydrogen, I need the Z number ( atomic number) Formula. ( ground state is 1 ) Hertz = (3.29 X 10^23 Hz) * Z^2 * (1/nf^2 - 1/ni^2) final - initial in that parenthesis, so 1 - 2, so to speak then wavelength = speed of light/Hertz
That is the "gamma" line of the Lyman series: 94.97 nanometers.
high frequency radiation
The answer is (B) Emits a Photon of Radiation.
It's warmed from the surface. Shortwave radiation passes through the atmosphere, or at least about half of it, where it reaches the ground and is absorbed. The ground re-emits it at a longer wavelength, thereby warming the lower atmosphere.
The ground state electron configuration of hydrogen is 1s1.
how is Hydrogen extracted from the ground
Yes, a hydrogen nucleus can emit an X-ray if it is excited sufficiently. All excited atomic nuclei can emit electromagnetic radiation. That's how they get coupled to their ground state. It is not unusual for highly energetic X-rays to be radiated from a nucleus that has become energized well above its ground state.
the weakness of cosmic back ground radiation as those radiation are left over of big bangs
The ground state electron configuration of the hydrogen atom is 1s1, and for helium it is 1s2.