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The uniqueness of the spectral line pattern of any element is caused by what?
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What do spectral lines tell us about the internal structure of the atom?
Spectral lines tell us how many different energy levels an atom has, and how far apart those energy levels are spaced. This is possible because spectral lines are the result of an excess (emission lines) or deficiency (absorption lines) of observed photons emitted from certain types of matter. The lines are caused by electrons moving between energy levels within individual atoms. Since each element emits it's own unique spectrum, this means that different types of atoms must have a distinct number of electrons in very particular energy levels.
What method has been used in the successful search for planets around stars other than the Sun?
Measurement of the wobble of the star, caused by the orbital motion of the planet, detected either by accurate positional measurement of the star or by spectral shift in the Star spectrum
How are normal elements differ from an isotope of the element?
Isotopes are the varying molecular weights of the atom caused by the addition or removal of neutrons.
What colour is aluminium and how is it caused?
Aluminum is a soft metallic element which is formed naturally and plentifully in the earth's crust. Its color is similar to silver.
What difference in densities caused the pattern of movement when the hot dye was placed in cold water?
the difference in densities caused by the pattern of movement observed when the hot dye was placed in cold water was that the dye rose quickly - since its less dense and began to cool which is why it dropped.
What is an atomic fingerprint?
An atomic fingerprint is a unique set of lines that identifies each element. The lines act much as DNA in a human, they are exclusive to the particular element, and caused by the energy level of the element.
What element is known as goiter?
No element is known as this. It is the name of the disease which is caused by the deficiency of the element Iodine.
What rare element caused an ancient health crisis?
Iridium is the rare element that is said to have caused an ancient health crisis (extinction of the dinosaurs).
When helium was discovered?
Helium was discovered in 1868 as a new spectral line in light from the sun by French astronomer Jules Janssen during a total solar eclipse in Guntur, India. In the same year, Norman Lockyer, an English Astronomer concluded that the new spectral line was caused by an element in the Sun unknown on Earth and named it Helium. In 1882, Italian physicist Luigi Palmieri detected helium on Earth for the first time. March 26, 1895 Sir William Ramsay, a Scottish chemist, isolated helium on Earth.
What element of the weather caused the dust storms?
Wind.
What do spectral lines tell us about the internal structure of the atom?
Spectral lines tell us how many different energy levels an atom has, and how far apart those energy levels are spaced. This is possible because spectral lines are the result of an excess (emission lines) or deficiency (absorption lines) of observed photons emitted from certain types of matter. The lines are caused by electrons moving between energy levels within individual atoms. Since each element emits it's own unique spectrum, this means that different types of atoms must have a distinct number of electrons in very particular energy levels.
When discover helium?
Helium was discovered in 1868 as a new spectral line in light from the sun by French astronomer Jules Janssen during a total solar eclipse in Guntur, India. In the same year, Norman Lockyer, an English Astronomer concluded that the new spectral line was caused by an element in the Sun unknown on Earth and named it Helium. In 1882, Italian physicist Luigi Palmieri detected helium on Earth for the first time. March 26, 1895 Sir William Ramsay, a Scottish chemist, isolated helium on Earth.
What was the major natural element that caused the most problems to the Gossamer Condor?
wind
How do rubies get their color?
The red color is caused mainly by the presence of the element Chromium.
Why are stars yellow?
Some stars appear yellow because either they are yellow or the white color can appear different. The spectral types F and G (our sun), contain yellow stars. This is caused by their temperature.
Can you give marsupials that platypus looks like?
No. The platypus does not look like any other animal, whether it be marsupial or otherwise. It is its very uniqueness that has caused people in the past to doubt whether such an animal truly exists.
Which element has a different number of neutrons?
Isotopes are different atoms of the same element with a different atomic mass. This difference is caused by a different number of neutrons.
