Plasmas/Ions/Quiz

Plasma ions is a lecture and an article about ions in plasmas from the physics and astronomy departments of the school of physics and astronomy and the school of chemistry.

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Quiz
{Which of the following is not a phenomenon associated with green astronomy? - photographs of the planet Venus taken in 1999 - Alpha Centauri A - ionization cones - a moderately intense aluminum line at 5593.302 Å - a xenon emission line at 541.915 nm + the lithium beta line
 * type=""}

{Yes or No, Some observed properties of the Sun still defy explanation, such as the degree of Li depletion: the solar Li abundance is roughly a factor of 200 below the meteoritic abundance. This has been confirmed using the lithium 555.2 nm line. - Yes + No
 * type=""}

{A laboratory solution to the discrepancy between the Spite plateau abundance and the predicted value of the primordial lithium abundance is lithium depletion through? { atomic diffusion|diffusion (i) }
 * type="{}"}

{True or False, Boron has an emission line in the yellow. - TRUE + FALSE
 * type=""}

{A possible solution to the discrepancy between the Spite plateau abundance and the predicted value of the primordial lithium abundance is lithium depletion through? { atomic diffusion|diffusion (i) }
 * type="{}"}

{True or False, Beryllium has an emission line in the cyan. - TRUE + FALSE
 * type=""}

{Which of the following are radiation astronomy phenomena usually associated with lithium emission? + a green emission line - nucleosynthesis + an orange line at 610.3 nm + the Spite plateau + lithium-drifted silicon detectors - the Fraunhofer E line - asymptotic supergiant branch + an infrared line at 812.6 nm
 * type="[]"}

{True or False, Lithium has an emission line in the blue. + TRUE - FALSE
 * type=""}

{Which of the following is not a phenomenon usually associated with solar wanderers? - green aurora - oxygen + production of 7Be - carbon or C2 - airglow - nitrogen - olivine
 * type=""}

{True or False, Beryllium has an emission line in the blue. + TRUE - FALSE
 * type=""}

{Radiation astronomy may help to detect what type of astronomical object? + a stellar class M dwarf - the hydrogen Balmer alpha line + the photosphere of the Sun + extrasolar planets - lithium - the CMB
 * type="[]"}

{True or False, Of some 824 red giant stars, lithium is detected in several stars. + TRUE - FALSE
 * type=""}

{Which of the following is not a phenomenon associated with red astronomy? - a stellar class M dwarf - the hydrogen Balmer alpha line - the photosphere of the Sun + an emission with a wavelength of 618 nm - lithium - "cometary knots"
 * type=""}

{True or False, Lithium has an orange line at about 671 nm. - TRUE + FALSE
 * type=""}

{Which of the following is not a phenomenon associated with green astronomy? - a stellar class G dwarf - the hydrogen Balmer beta line - the photosphere of the Sun + an emission with a wavelength of 618 nm - "ionization cones" + boron ion emission
 * type="[]"}

{True or False, Boron has an emission line in the blue. + TRUE - FALSE
 * type=""}

{Phenomena associated with some brown dwarfs are which of the following? + lithium + a temperature well below the stellar range + methane absorption + the lithium test + X-rays + T dwarfs
 * type="[]"}

{True or False, Beryllium has an emission line in the orange. - TRUE + FALSE
 * type=""}

{Infrared astronomy has really helped to detect what type of astronomical object? - a stellar class G dwarf - the hydrogen Balmer alpha line - the photosphere of the Sun + extrasolar planets - lithium - the CMB
 * type=""}

{True or False, Boron has an emission line in the cyan. + TRUE - FALSE
 * type=""}

{Complete the text: The standard solar models have enjoyed tremendous success recently in terms of agreement between the predicted { outer structure|structure (i) } and the results from { helioseismology|seismology (i) } but some { observed properties|properties (i) } of the Sun still defy explanation, such as the degree of { Li|lithium (i) } depletion.
 * type="{}"}

{True or False, Beryllium has an emission line in the yellow. - TRUE + FALSE
 * type=""}

{Which of the following is not a characteristic of meteoritic lithium abundance? - light elements may have been formed by the irradiation of interstellar matter + closely matches the solar abundance - not diminished by nucleosynthesis - not destroyed by nuclear fission reactions - may have been produced by cosmic-ray spallation
 * type=""}

{Which of the following is not a characteristic of green astronomy? + boron - wavelength range of 495-570 nm - chlorophyll - greenstones - phytoplankton
 * type=""}

Hypotheses

 * 1) Plasma ions occur primarily above the surface of the Sun.