The reaction is extremely exothermic, producing a bright yellow light and a great deal of heat energy. ... The hot sodium then reacts with the chlorine, producing a bright yellow light, a great deal of heat energy, and fumes of sodium chloride, which deposits on the walls of the bottle.
The hot sodium then reacts with the chlorine, producing a brilliant yellow light, a first-rate deal of warmth energy, and fumes of sodium chloride, which deposit at the walls of the bottle. In the first video clip, the sodium flares up nearly straight away upon response to the water, and "burns out" quickly.
A sodium atom loses an electron to a chlorine atom. The sodium atom will become a nice sodium ion. The chlorine atom turns into a poor chloride ion. both sodium ions and chloride ions have full electron shells.
Sodium chloride on heating with sodium vapours acquires yellow color because sodium chloride crystal suffers metallic excess disorder with sodium vapours on heated condition. Due to the digital transition on the excited state of the sodium atom, it appears yellow.
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