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All elements emit colors when an electric current is applied.
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∙ 11y ago
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What gases make up neon colors?
Look to the far right of the periodic table. Those are inert gases. Neon among them. On my chart in the "Life Science Libary" "Matter" book they were in tubes and electrified. They all had unique colors. By mixing them you have a pallet of electric light.
Why can neon lights glow in different colors?
The vivid colors seen in advertising lights are the result of different neon gases that each tube contains. Different gases burn at various temperatures resulting in these colors. For example magnesium produces the bright white color light.
Are all gases invisible?
Usually it seems that they are. Some really are. Others are just not presented in a way that makes them visible. In short, some gases are visible and have colors. Check the link.
What is the difference from an LED light to a normal incandescnt or fluorescent bulb?
The main difference is how light is produced in each. In a LED, a device known as a light-emitting diode produces light when receiving a certain level of current. In an incandescent bulb, a thin piece of conductive metal glows brightly (incandesces) when subjected to a current in an oxygen free environment, such as a vacuum or near-vacuum (the absence of oxygen keeps the metal from burning and decomposing). Finally, a fluorescent bulb works by subjecting a special mixture of gases to an electric current. The current excites molecules of gas, which release light in the process.
Why are the colors of the spectrum different in each gas?
A spectrum is a function of the light source. A gas will absorb / emit light based on its molecular bonds, and different gases have different bonds.
Why does some gas conduct electricity?
Most gases conduct electricity when a very high voltage is applied to them. This occurs in nature as lightning.The gases are ionised ,or stripped of electrons, and then become a plasma whereupon they conduct an electric current and glow according to their chemistry. Neon has a signature red colour.
What Substances that conduct an electric current under certain conditions are most likely to be?
metalloids
What do you call the liquid that allows electric current to pass through?
Electric current does not need a liquid. It can pass in solids, liquids, gases, and even empty space. If it passes through a liquid, the liquid is called an electrolyte.
When electric current is passed through a strong solution of brine then what will happen?
the water will be heated and electrolysed to give hydrogen and oxygen gases
Unlike a gas plasma conduct electric current?
Yes. Plasmas conduct electric currents, but gases don't.
When electric current pass through water.Which gases r obtained as anode and which obtain as cathode?
Oxygen at positive anode and Hydrogen at negative cathode
What causes current to flow in a circuit?
The flow of electrons or is it magnetic fieldsAnswerAn electric current is a drift of electric charge, due to a potential difference. In metal conductors, the electric charges involved are free electrons, but in conducting liquids and gases, they are ions (charged atoms). The drift is extremely slow, in the range of millimetres per hour.
Pascal's Principle can be applied to what?
liquids and gases
What gases make up neon colors?
Look to the far right of the periodic table. Those are inert gases. Neon among them. On my chart in the "Life Science Libary" "Matter" book they were in tubes and electrified. They all had unique colors. By mixing them you have a pallet of electric light.
What is the difference between an electrical insulator and an electric discharge?
An electrical insulator is a material whose internal electric charges do not flow freely, and therefore make it nearly impossible to conduct an electric current under the influence of an electric field. This contrasts with other materials, semiconductors and conductors, which conduct electric current more easily.Electric discharge in gases occurs when electric current flows through a gaseous medium due to ionisation of the gas. Depending on several factors, the discharge may radiate visible light.
Why gases conduct electricity when pressure is reduced in discharge tube?
When the pressure is reduced in a discharge tube, the mean free path of the gas molecules increases. This allows the gas molecules to gain more energy and move freely, colliding with the charged particles in the discharge tube and facilitating the flow of electric charge. As a result, the gases become partially ionized, creating a conductive path for the electricity.
Cost to make a electrolysis?
There are two common definitions for electrolysis, both using electric current. Scientists use electric current to cause chemical changes, such as converting liquid water into hydrogen and oxygen gases. It costs very little to do this experiment (see http://www.wikihow.com/Make-Oxygen-and-Hydrogen-from-Water-Using-Electrolysis). Electrolysis also refers to the cosmetic use of electric current to permanently remove body hair. The current both loosens the hair for easy removal and kills the root of the hair to prevent regrowth.
