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What displays different wavelengths of light due to elements absorbing or emitting quanta?
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What does An achromatic lens consists of?
Achromatic Lenses consist of two or more elements, usually of crown and flint glass that have been corrected for chromatic aberration with respect to two selected wavelengths. by jay-j
Which elements emit radiation in the visible part of the spectrum?
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.
Has the cl2 and br2 the same number of proton?
No, as they are composed of different elements they have different numbers of protons.
What are the factors that affect the color of an object?
Chemical properties of matter describes its "potential" to undergo some chemical change or reaction by virtue of its composition. What elements, electrons, and bonding are present to give the potential for chemical change. Chemical change results in one or more substances of entirely different composition from the original substances. The elements and/or compounds at the start of the reaction are rearranged into new product compounds or elements. A CHEMICAL CHANGE alters the composition of the original matter. Different elements or compounds are present at the end of the chemical change. The atoms in compounds are rearranged to make new and different compounds.
What are control rods in a reactor core used for?
Control the reaction rate by absorbing neutrons that are generated but not needed. They are typically made of cadmium or boron, elements that have very large neutron capture crosssections (a measurement of the statistical probability of a given nuclear interaction).
What causes the dark bands observed in a solar spectrum?
The dark bands are caused from the differnet chemical elements which absorb light at specific wavelengths.
Why did each compound produce a flame of a different color?
Different elements have different emission spectra, meaning that if the electrons in an atom are excited, they will release that energy in different color of light. The flame color depends on the elements in the compound.
How do they know what planets are made of?
Light Spectrum Analysis. Different elements reflect different wavelengths of light. Simply put if you look at th different colors of light that is reflected from something you can determine the basic elements it is composed of.
How do scientists tell difference between elements?
There are many different tests. For example, if you burn some elements they give of light at very specific wavelengths, called an emission spectrum.
What organizes and displays info about the elements?
The periodic table of elements.
What is the periodic table elements?
A chart that displays and organizes the elements in rows and columns.
What the periodic table elements?
A chart that displays and organizes the elements in rows and columns.
What what is the periodic table of elements?
A chart that displays and organizes the elements in rows and columns.
Can scientists analize the elements of a star?
Scientists can assess which elements are present in the star, by looking at the light it gives off and breaking this light down into the different colours that make up the total colour. They look at the spectrum given off. The different elements present in the star cause different light wavelengths (or colours) to be emitted.
How astronomers can identify the gasses found in a planet's atmosphere explain?
It's by analzying the spectrum of light reflected off the planet, through a method called spectroscopy. Different elements absorb light energy at different wavelengths, and re-emit light at specific, well-characterized wavelengths. By analyzing the light reflected off a planet, scientists can work out the most abundant elements in its atmosphere.
What elements of a newspaper displays the name of the paper?
The masthead.
Why do different elements create differnat colors?
When substances appear colored to the human eye, it is due to the absorption of certain frequencies of light. The frequencies of light that are not absorbed contribute to the color that is perceived. For example, if red wavelengths of light are absorbed by a substance, it will appear green (red's complementary color). Since different elements absorb different frequencies (due to their electronic structure), different elements can appear different colors.
