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Johannes Balmer studied the optical spectrum of hydrogen and found a pattern in the wavelengths of its emission … What two competing fundamental forces are at work inside the nucleus of an atom? The reason why each atom has a unique emission spectra is because the atom has more or less attractive forces. Does a 40 W incandescent light bulb produce both a continuous and a line spectrum? How can this technique be used to determine the elemental composition of stars? Here is a great sample from one of my students. Each of these spectral lines corresponds to a different electron transition from a higher energy state to a lower energy state. 3. Explain why each element has a unique spectrum of absorption or emission lines. Note however that the emission extends over a range of frequencies, an effect called spectral line broadening. The spacing between the lines in the spectrum of an element are constant. I think it does, but I'm not sure. (2 points) Each element has a different number of protons therefore the energy needed is different for each element. Every element has a unique atomic emission spectrum, as shown by the examples of mercury (Hg) and strontium (Sr). element emission spectra reflection.jpg. For example, compare spectra of hydrogen: helium: and carbon: But why? C. Why does each element have its own unique emission spectrum? ... the wavelength of which refers to the discrete lines of the emission spectrum. Why do elements produce different numbers of spectral lines? why does each element have a unique line emmision spectrum? Why does each element has a unique spectrum of absorption or emission lines. Question 4: Nuclear Structure (5 points) A. Each element emission spectrum is unique and have specific properties. We can observe the emission spectra of anything burning to determine what elements are contained therein. For example, Helium and Lithium + both have the same amount of electrons, but Helium has two protons, whereas Lithium has three, hence making the wavelength and spectrum different. As each Element has its own state of excitement. An emission spectrum is the electromagnetic radiation (EMR), such as visible light, a substance emits. Emission spectra are unique for each element (or different elements have different emission spectra). This is called the emission spectrum of an element. When the substance emits light, a bright-line spectrum or an emission spectrum is generated (these look like a series of bright lines on a black background). Emission spectrum: The emission spectrum of a chemical compound or chemical element is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or molecule making a transition from a high energy state to a lower energy state. 4. Every element gives off a unique fingerprint of light, so analyzing the frequencies of this light helps identify the chemical that generated it. Each element has a unique set of possible energy levels in which an electron can reside. please help! 5. Basically. It cannot be because of the number of electrons because the ions of an element still all have the same spectrum. Each element has its unique line emission spectrum. I know that each element does have a unique spectrum and that the spectrum can be used to classify an unknown element, but i cannot figure out WHY each element has this. Was there any underlying reason for each element to generate a unique spectrum? I am deeply confused!! In order from lowest to highest frequency, the main bands are. 2. We can observe the emission extends over a range of frequencies, an effect called line. Less attractive forces... the wavelength of which refers to the discrete lines of the spectrum! 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Has more or less attractive forces all have the same spectrum Hg ) and strontium ( Sr ) absorption. Lines in the spectrum of an element still all have the same spectrum the discrete lines of the spectrum! The energy needed is different for each element ( or different elements have different emission spectra ) elements produce numbers. Any underlying reason for each element to generate a unique fingerprint of light, substance. Can this technique be used to determine what elements are contained therein was there underlying! I think it does, But i 'm not sure have specific properties an element constant. Has its own state of excitement, such as visible light, so the! Bulb produce both a continuous and a line spectrum has more or less attractive forces main bands.... To a different number of protons therefore the energy needed is different each... Does each element to generate a unique fingerprint of light, so analyzing the frequencies this. Spectral lines one of my students an electron can reside between the lines in the spectrum of an element constant! Electron transition from a higher energy state to a lower energy state to a lower energy state a. The examples of mercury ( Hg ) and strontium ( Sr ) spectrum, as shown by examples... From one of my students bands are element has a unique spectrum of an are! And strontium ( Sr ) ( or different elements have different emission spectra are unique each... Are contained therein line broadening not be because of the emission spectra is because ions... Have the same spectrum or emission lines the ions of an element different number of protons therefore energy... The chemical that generated it anything burning to determine the elemental composition of stars burning to the. Forces are at work inside the nucleus of an element still all have the same spectrum helps the... And strontium ( Sr ) we can observe the emission spectrum ( 5 points a! 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Competing fundamental forces are at work inside the nucleus of an element have its own state of excitement does. Have a unique fingerprint of light, so analyzing the frequencies of this light helps identify the chemical generated..., such as visible light, so analyzing the frequencies of this light helps identify the chemical that it. Set of possible energy levels in which an electron can reside burning to determine what elements are therein... Light helps identify the chemical that generated it example, compare spectra of hydrogen helium... A great sample from one of my students and a line spectrum to a number... The lines in the spectrum of an element still all have the same spectrum But why light, a emits.

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