0
What else can I help you with?
Why elements give line spectrum?
Because the spectra of elements is determined by the energy of transitions of electrons between two allowed quantum states. Since these energy differences can have only certain specified values, the spectrum consists of lines: The spectrum frequency values intermediate between the lines do not correspond to transitions between any two allowed quantum states and therefore do not appear in the spectrum
What means to gives out light?
To give out light means to emit photons or electromagnetic radiation in the visible spectrum, making an object or source visible to the human eye. Light can be produced naturally (such as sunlight) or artificially (such as light bulbs or LEDs).
Why a non luminous flame does not give out much light?
A non-luminous flame does not give out much light because it lacks sufficient heat to excite the molecules in the flame to emit visible light. The flame does not reach a high enough temperature to produce a glowing effect, resulting in minimal light emission.
How is the emission spectrum related to the absorption spectrum?
They are related by they are both spectrums that give the color(s) that the element is. The Emission Spectrum shows what color(s) it gives off, and the Absortion shows what color it absorbs and doesn't show. They also fit together and make a continuous spectrum.
Why does a light bulb give off radiation?
A light bulb gives off radiation in the form of light when the filament inside it heats up to a high temperature, causing it to glow and emit electromagnetic radiation in the visible spectrum. This radiation is what we perceive as light.
Why do different elements give off a colorful light when heated?
The color depends on the lines of the emission spectrum of each different element.
What can you now say about the spectra from various light sources?
The light source will give a spectrum that shows what elements are present. Each element will give of a particular colour, almost like a fingerprint.
How is an emission spectrum of an element generated?
All hot solids or dense enough gases emit black body radiation. Gases that are not very dense are are cold absorb particular wavelengths while gases that are not dense but are hot produce their characteristic emission spectrum.
How can you identify the elements in other galaxies?
Each element has a characteristic "fingerprint", that can be noticed in the light that comes from a star, or galaxy. When the light is separated into its component, you see a so-called "spectrum"; specific elements have lines at specific position on such a spectrum. This can give at least a qualitative analysis; a quantitive analysis (the exact amounts) is trickier, but it can at least be estimated.
Why do atoms of an element give off unique atomic spectra?
The precise energy levels of each orbital vary depending on the nuclear charge. Since the spectral lines correspond to transitions between orbitals, each element will have different energies for these transitions, and therefore will have a unique spectrum.
Why elements give line spectrum?
Because the spectra of elements is determined by the energy of transitions of electrons between two allowed quantum states. Since these energy differences can have only certain specified values, the spectrum consists of lines: The spectrum frequency values intermediate between the lines do not correspond to transitions between any two allowed quantum states and therefore do not appear in the spectrum
Why do lithium produce red color when placed in flames?
Lithium produces a red flame color because of its unique emission spectrum. When heated in a flame, electrons in lithium atoms gain energy and move to higher energy levels. As they return to their original energy levels, they emit light in the visible spectrum, with the characteristic red wavelengths predominating.
What would mixing red and blue light give?
Mixing red and blue light would give purple light. This is because red and blue light are at opposite ends of the visible light spectrum, and when combined they create a color between them.
What means to gives out light?
To give out light means to emit photons or electromagnetic radiation in the visible spectrum, making an object or source visible to the human eye. Light can be produced naturally (such as sunlight) or artificially (such as light bulbs or LEDs).
Give the importance of elements and compounds?
1.they give carbon dioxide and oxygen2.element is pure substance that cannot be broken3.in has light,an element is the simplest kind of matter
Very dense material when heated will give off a spectrum?
Heating a dense material can cause it to emit light at specific wavelengths, creating a spectrum. This is known as incandescence, where the material's atoms release energy in the form of visible light as they vibrate or move more energetically. The specific colors in the spectrum depend on the material's composition and temperature.
Why does an element give off light of a particular colorwhen flame test is being conducted?
This is because each element has different photons (bundles of light) it gives off during reaction or energy transfer. For example, lithium has primarily red photons, so you see a lithium flame as red.
