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What spectum is obtained When any element in the gas phase is excited to the point where it emits visible light?
Wiki User
∙ 14y ago
When any element is excited to the point where it emits visible light, it emits a unique spectrum. The Mercury in a florescent lamp emits a spectrum in the ultraviolet spectrum. It excites phosphorus powder on the inside of the bulb. The ultraviolet rays strike the phosphorus and it emits white light. Sodium emits yellow light. Potassium emits purple light. Sodium actually emits two different yellows. Each element emits several different colors.
The above is not wrong, but it doesn't really answer the question. I believe the answer the poster was looking for is emission spectrum.
You may be correct. I have no intention of giving the emission spectrum of every element. I only wished to help the questioner understand what happens when an emission spectrum is produced. I had the idea that the questioner had the idea that every element produced the same emission spectrum. We interpreted the question differently.
Wiki User
∙ 14y ago
When any element in the gas phase is excited to the point where it emits visible light, an emission spectrum is obtained. This emission spectrum consists of lines at specific wavelengths corresponding to the energy levels of the atoms in the gas that are emitting light. Each element has a unique emission spectrum, making it a useful tool for identifying elements.
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Which portion of the electromagnetic spectum can be viewed with the bare human eye?
The visible light spectrum (wavelengths from 380 to 700 nanometers)
Does a fluorescent bulb specificaly phosphorus reflects ultraviolet radiation.?
No, fluorescent bulbs contain phosphor coatings that emit visible light when excited by ultraviolet radiation. The phosphors convert the ultraviolet light into visible light, providing the illumination we see from the bulb.
How is an atomic spectra produced?
Electrons move between different energy levels in an atom. When electrons are in the lowest orbital, otherwise known as the ground state, they eventually progress into the highest orbital, also known as the excited state. When electrons move from the excited state back to the lowest orbital, they emit energy in the form of light that varies in colors, depending on the element. Some of these forms of light may not always be visible to the naked eye.
Why are carotenoids coloured?
Carotenoids have conjugated bonds. Wavelengths of visible light are absorbed when electrons are excited to higher energy levels. The complementary colour is to that absorbed is observed.
Why do different elements emit different colors when they are heated?
because when elements are heated there electrons become excited and jump through the elements "steps" and as they become less excited the jump back down steps emitting a unique wavelength and the visible wavelength is the colour we see -------------------------------------- The wavelength of the spectral lines emitted by different elements are specific for each element. Consequently the colour is also different.
What visible light color is strongly absorbed by chlorophyll?
Predominantly red and blue spectum, green is refelcted
Which portion of the electromagnetic spectum can be viewed with the bare human eye?
The visible light spectrum (wavelengths from 380 to 700 nanometers)
What energy is a light?
light energy is any visible form of energy that forms part of the electomagnetic spectum it is therefore transmitted as any form of electromagnetic wave.
How is the electromagnetic spectrum related to sight?
Visible light is a subset of the electromagnetic spectrum. Starting at the longest wavelengths (lowest frequencies), the electromagnetic spectum includes:Radio wavesMicrowavesInfra-redVisible lightUltravioletX-raysGamma raysRefer to the related link below for additional informaiton.
The bright-line spectrum produced by the excited atoms of an element contains wavelengths that are?
specific to that element and correspond to the energy levels of the electrons transitioning between orbitals. The wavelengths in the bright-line spectrum are unique for each element, allowing scientists to identify elements based on their spectral lines.
How is visible light made?
Light is emitted when an electron drops from the orbit of an excited state, into its natural state. The quantum of light emitted is characteristic of the change in energy of the two electron states, and also of the actual element involved.
If you cut a metal element over and over again until it is not visible would it still be an element?
Yes
Why is mercury used in streetlights?
Mercury vapor is used in streetlights because it produces a bluish-white light that closely resembles natural sunlight, providing good color rendering and visibility at night. However, due to environmental concerns over mercury toxicity, many places are transitioning to more energy-efficient and environmentally-friendly LED streetlights.
What is the visible spectum?
White light is composed of many colours. When these colours combine, they look white. One way of showing that white light is composed of different colours is to make white light pass through a glass prism. This splits up the white light into its constituent colours. I f you hold a screen in its path, you will see a band of colours. This band of colours is called the spectrum. Since it is visible to human eyes, it is called the visible spectrum.
How is an atomic spectra produced?
Electrons move between different energy levels in an atom. When electrons are in the lowest orbital, otherwise known as the ground state, they eventually progress into the highest orbital, also known as the excited state. When electrons move from the excited state back to the lowest orbital, they emit energy in the form of light that varies in colors, depending on the element. Some of these forms of light may not always be visible to the naked eye.
What element is visible in John Constable's work?
Geometric shapes is the correct answer.
Does a fluorescent bulb specificaly phosphorus reflects ultraviolet radiation.?
No, fluorescent bulbs contain phosphor coatings that emit visible light when excited by ultraviolet radiation. The phosphors convert the ultraviolet light into visible light, providing the illumination we see from the bulb.
