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23.08.2019 •
Chemistry
Is the element americium a metal, metalloid, or a nonmetal?
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Ответ:
Ответ:
Prism - A material that splits light into its frequencies
Absorption spectrum - The frequencies of energy absorbed by an element
Emission spectrum - The frequencies of photons a sample emits
Flame test - Heating a sample to identify it by its spectrum
Spectrum - A continuous range of wavelengths or frequencies
Line spectrum - The specific frequencies of energy transitions in a substance
Explanation:
When light passes through a prism, light separates into its component wavelengths. This is known as diffraction of light.
When a substance is exposed to heat, it absorbs energy. The absorption spectrum is the frequencies of energy absorbed by an element.
Substances at a higher energy let go of energy and return to ground state (the lowest energy state). The emission spectrum consists of the frequencies of photons a sample emits.
It is normal to heat substances in order to identify them. Flame test has to do with heating a sample to identify it by its spectrum.
The spectrum of a substance consists of a continuous range of wavelengths or frequencies absorbed or emitted by an object.
The line spectrum refers to the specific frequencies of energy transitions in a substance