Tag: element, compound and chemical reaction

Plasma state is obtained by heating gases to very high temperature. During heating of the gases, the electrons get extracted from the atom. Because of this the formation of the positively charged nucleus and negatively charged electrons takes place in the gas. This causes ionization of the gas.

Bose-EInstein condensate (BEC) is the fifth state of matter which is obtained by supercooling of the substance below $-273^0C$. This state of matter is artificially prepared in a laboratory because it is difficult to obtain such a low temperature naturally.

The shining of the sun and stars is due to the plasma state of matter. The plasma state causes ionization of the gases which causes shining of the substance.

Plasma is called fourth state of matter. In this state every substance remains in gaseous state, this gas has only ions and free electrons. This state is obtained by freeing all the electrons from the attraction of nucleus. To make the electrons free from nucleus we have to give them energy equal to or greater than the energy by which they are bound with nucleus, therefore for that we require a great amount of energy.

Plasma state refers to the super heated gaseous state.
Plasma state is obtained by heating a gas above 5000 $^o$C. The number of electrons in the atoms or molecules decreases or increases, to form positively or negatively charged ions and also the molecular bond breaks.

When an application of high voltage is provided to the electrodes, the neon gas ionizes due to the flow of $e^-$ which thereby excite the neon gas atoms and cause them to emit light. In the case of fluorescent tubes, low-pressure mercury vapour is present which emits UV light when ionized.