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Why emission spectrum of sodium give two peaks while other elements show only one?
The emission spectrum of sodium shows two peaks, primarily due to the presence of two closely spaced energy levels associated with its electron transitions, specifically the D-lines (D1 and D2) resulting from transitions between the 3p and 3s energy levels. In contrast, other elements may have transitions that result in a single peak if their energy levels are further apart or if they lack multiple closely spaced transitions. Sodium's unique electron configuration and interactions lead to these distinct spectral lines, which are characteristic of its atomic structure.
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Why line spectrum is called finger print spectrum?
It is unique to a specific atom. The emission spectrum of sodium, for example, has two characteristic lines close together in the yellow part of the spectrum, which cannot be found in any other atom. Each line in a spectrum relates to a change in electron state or level.
What is the constituent elements of salt?
Table salt is NaCl, sodium chloride, composed of the elements sodium and chlorine. There are also many other types of salts, all composed of various combinations of metals and nonmetals.
What does sodium and chlorine have in common with each other?
Both are reactive chemical elements.
In pure yellow light provided by a Low pressure sodium lamp why do some colors remain and others turn different shades of Yellow?
Low pressure sodium lamps emit a specific wavelength of yellow light. Objects that reflect or absorb other wavelengths of light will appear as different shades of yellow under this light source. Colors that do not have any yellow component in their spectrum may appear different shades of gray or black.
How much iodine is in190mg of sodium?
None, sodium does not contain iodine or any other element apart from itself..
What is a star's emission spectrum?
The emission spectrum of a star is the spectrum of frequencies for emitted electromagnetic radiation during the transition of an atom's electrons from a high-energy state to a low-energy state. The emission spectrum can differ depending on the temperature and composition of the star.
What is the significance of the helium lamp spectrum in the study of atomic emission spectroscopy?
The helium lamp spectrum is important in atomic emission spectroscopy because it provides a reference for identifying and calibrating the wavelengths of light emitted by other elements. By comparing the emission lines of unknown samples to the known lines of helium, scientists can determine the elemental composition of a sample.
What elements are in sodium chloride other than sodium and chloride?
Sodium and chlorine are the only elements in sodium chloride.
Can you describe an astronomical spectrum?
'Astronomical spectrum' is not a specific term. I suspect you are thinking of the emission spectrum of a star, which can tell us a great deal about the composition of the star. Light and other radiations from the object are spread out into constituent wavelengths and dark lines appear across the spectrum at certain specific wavelengths which are characteristic of elements present.
What group of elements can be detected by flame emission spectrometry?
Metal ions such as sodium, potassium, calcium, and strontium can be detected by flame emission spectrometry. When these elements are heated in a flame, they emit characteristic wavelengths of light that can be measured to identify and quantify their presence in a sample.
What is the process in which elements change to other elements by emission of ionizing particles?
Radioactive decay.
Why line spectrum is called finger print spectrum?
It is unique to a specific atom. The emission spectrum of sodium, for example, has two characteristic lines close together in the yellow part of the spectrum, which cannot be found in any other atom. Each line in a spectrum relates to a change in electron state or level.
What are Frequencies of light emitted by an element called?
"Spectrogram" is a word used to describe the set of specific characteristic frequencies of light which are emitted by a given chemical element when it is sufficiently excited by heat or by some other means.Alternatively, a scientific technique known as "spectroscopy" can be used to identify the elements in some matter of unknown composition and also the emission spectra of molecules can be used in chemical analysis of substances.Because each element's emission spectrum is unique, the "emission spectrum" of a chemical element or chemical compound can be used to help identify what it is. The "emission spectrum" is the name given to the relative intensity of each frequency of electromagnetic radiation http://www.answers.com/topic/emission-spectrum by the element's atoms or a compound's molecules when they are returned to a ground state.
Can sodium combine with other elements?
Yes, it can, and it combines with many other elements. The most common example is sodium chloride, ordinary table salt.
How can emission spectra used to identify presence of specific elements in a substance?
In atomic spectroscopy, each element has a unique spectrum. The atomic spectrum obtained from a sample is a combination of the spectra of each elemental component. We take the strongest line from the sample spectrum and determine which elements could have caused it (we call these "candidates"). We then look at the full spectrum from each candidate and see whether or not every major line is present in the sample spectrum. If so, we say that element is present.Then we subtract the spectrum (or spectra) of the element(s) we have determined to be present from the sample spectrum and repeat the same process with the next strongest line in the (leftover) sample spectrum. We continue repeating this process until all lines in the sample spectrum are accounted for.
Which element couse difficulties in flame tests of other elements?
Sodium can cause difficulties in flame tests of other elements because it produces a very bright yellow flame, which can mask or interfere with the colors produced by other elements.
How can you Distinguish absorption spectrum from emission spectrum?
Emission spectra are bright-line spectra, absorption spectra are dark-line spectra. That is: an emission spectrum is a series of bright lines on a dark background. An absorption spectrum is a series of dark lines on a normal spectrum (rainbow) background.
