Definition of beta. 1  1 : the 2nd letter of the Greek alphabet â see alphabet table. 2  2 : beta particle. 3  3 : a measure of the risk potential of a stock or an investment portfolio expressed as a ratio of the stock's or portfolio's volatility to the volatility of the market as a whole.
Chlorine has been used as a chemical warfare agent. Sources: In nature, chlorine is only found in the combined state, most commonly with sodium as NaCl and in carnallite (KMgCl 3 â¢6H 2 O) and sylvite (KCl). The element is obtained from chlorides by electrolysis or via the action of oxidizing agents. Element Classification: Halogen. Density (g/cc): 1.56 (@ -33.6 Â°C).
Chlorine exists in the form of a salt (chloride) in the human body. It is present mostly in the extra cellular fluid. Chlorine is a greenish-yellow poisonous, gaseous element with a suffocating odor. In the body it is mostly present as sodium chloride or common salt, which performs various essential functions. Combining with sodium, it forms the most important electrolyte in the body. It is needed to perform various cellular activities in the body. It carries electric charges from one cell to another.