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Which elements emit radiation in the visible part of the spectrum?
Wiki User
∙ 9y ago
Radioactive elements such as radium or uranium emit radiation.
There are three types of "radiation"; alpha particles (which are solitary electrons), beta particles (helium nuclei, consisting of two protons and two neutrons) and "gamma radiation", which is high-energy electromagnetic energy similar to light or X-rays.
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoThe visible part of the spectrum has wavelengths that range from violet light at 400 nm or nanometers to red light at 700 nm. Many different elements emit radiation in this range, such as calcium-yellowish to orange light, barium-green light, sodium-yellow light, and cesium-violet light. However, there are many more elements that emit radiation in this range of wavelengths.
Wiki User
∙ 12y agoAll elements have at least some radioactive (unstable) isotopes. But usually an element is only considered radioactive if all of its isotopes are unstable. The radioactive isotopes of the"non radioactive" elements are generally rare.
Wiki User
∙ 14y agoCobalt-60 is a very strong gamma radiation emitter.
Wiki User
∙ 13y agouranium
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Wiki User
∙ 11y agoradioactive material
Wiki User
∙ 11y agouranium and lead and carbon
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Why does an object appear to be black in color?
An object would appear black if:it did not emit any visible radiation.it was in an environment where there was no ambient visible radiation present.the compounds on its surface absorbed all radiation comprising the visible spectrum.
What kind of electromagnetic radiation do all warm bodies emit?
Warm bodies emit infrared radiation.
Does kindle emit electro magnetic radiation?
Since visible light is one form of electromagnetic radiation, the Kindle{R} brand of pad would have to emit such radiation in order to be usable.
What is the release of energy by particles of matter that have absorbed extra energy called?
Radiation. Different levels of energy dictate the type of radiation that is emitted. Extremely excited particles might emit visible light or even x-rays while particles that are not very excited might emit weak radio waves. This range from weak radiation to strong radiation is called the electromagnetic spectrum.
Do hotter objects emit more infrared radiation?
True , because the warmer objects give off more infrared radiation than cooler objects ..
What type of radiation do stars emit?
Electromagnetic radiation is the primary solar radiation, which ranges from UV through the visible spectrum into the infrared (IR), including long radio waves.
Why does an object appear to be black in color?
An object would appear black if:it did not emit any visible radiation.it was in an environment where there was no ambient visible radiation present.the compounds on its surface absorbed all radiation comprising the visible spectrum.
Why elements in gaseous state emit radiation?
They do not! Most gases do not emit radiation.
Why does light attract heat?
It Doesn't!!! Light sources sometimes emit heat as Infra Red radiation which is part of the electromagnetic spectrum, like visible light, but you can't see it. It Doesn't!!! Light sources sometimes emit heat as Infra Red radiation which is part of the electromagnetic spectrum, like visible light, but you can't see it. Light = Energy = Heat = Can make light?
How does a radio telescope see objects which are too dim for an ordinary telescope?
Radio Telescope observe light of a different wavelength then optical light. Radio waves have a longer wavelength then visible light. Some interstellar objects barley emit any light in the visible spectrum but emit a significant amount of radiation in the radio spectrum. Radio telescopes enable us to view objects which emit in the radio spectrum.
What type of spectrum does the Sun's photosphere produce?
Visible light is a portion of the electromagnetic radiation that is visible to the human eye. Stars Emit their own light. visible Light has a Wavelength of around 80 or 400 nm to about 760 or 780 nm
What radiation emitting from stars to earth?
All forms of electro-magnetic ... the full spectrum from UV to visible light to infrared. Pulsars emit x-rays
What spectrum does the sun emit?
The Sun emits radiation across almost the entire electromagnetic spectrum.
What kind of electromagnetic radiation do all warm bodies emit?
Warm bodies emit infrared radiation.
Does kindle emit electro magnetic radiation?
Since visible light is one form of electromagnetic radiation, the Kindle{R} brand of pad would have to emit such radiation in order to be usable.
What is the release of energy by particles of matter that have absorbed extra energy called?
Radiation. Different levels of energy dictate the type of radiation that is emitted. Extremely excited particles might emit visible light or even x-rays while particles that are not very excited might emit weak radio waves. This range from weak radiation to strong radiation is called the electromagnetic spectrum.
Do stars emit gasses?
They ARE gas - or more accurately plasma. They do though emit vast quantities of dust (condensed atoms and molecules of elements they have formed) and gas, along with subatomic particles and a great swathe of the electromagnetic radiation spectrum. The actual materials and radiation depend on the star itself, and its stage in life.
