When heated or exposed to electricity, the electrons in atoms of a given element gain energy and move to a higher energy level or orbit; they do not maintain this position but re-emit the energy as light of a specific wavelength, generating color. For elements in a solid or liquid state, this light generally appears as a rainbow while elements in a gaseous state reveal their atomic emission spectra, the specific bands of color produced by that elements particular electron configuration.Know More
When an atom is heated it gains energy. This energy is absorbed by the electrons and it causes them to move to higher energy levels or orbitals. The electron then drops back down to its original energy level, releasing a photon with a wavelength that corresponds to the energy gained and then lost by the electron.
The emission spectrum of a particular element is the characteristic wavelengths of light produced by the atoms of that element when heated as a gas. These wavelengths are distinctive because the different electron configurations in different atoms cause different wavelengths of light to be emitted. Which wavelength is predominant in the emission spectrum of an element will determine what color you see when that element is heated as a gas.Learn more in Chemistry
When a solid is heated, the molecules that make up the solid begin to vibrate. This causes them to take up more space, and the solid matter expands. If the heat continues to build, it may provide enough energy for the particles to break free from their strong attraction to one another, causing the solid to melt.Full Answer >
Oils used in food preparation have a range of boiling points, from about 375 F to about 510 F. The boiling point of oil depends upon the specific type of oil that is being heated as well as its specific purity. Crude oil subjected to refining involves a spectrum of different boiling points to extract the various elements comprising it.Full Answer >
Of the visible light spectrum, violet waves have the most energy. The visible violet light's wavelength measures at 400 nanometers.Full Answer >
Electronegativity in atoms causally relates to polarity in molecules, as different electronegativities in different components of an asymmetrical molecule cause that molecule to be polar. However, electronegativity differences that are too great lead not to polar molecules, but to ionic bonds. Electronegativity differences also do not lead to polar molecules when they are fully symmetrical because the charges are balanced.Full Answer >