![]() ![]() ![]() Distribution of Electrons in Shell in Chlorine AtomĬhlorine (Cl) has an atomic number of 17, which means it has 17 electrons distributed in different energy levels or shells. The outermost shell, which is the 3p shell, has five electrons, and these are the valence electrons of chlorine. The first two electrons are in the 1s orbital, the next two are in the 2s orbital, the next six are in the 2p orbital, the next two are in the 3s orbital, and the last five are in the 3p orbital. This means that chlorine has 17 electrons. The electron configuration of chlorine is:ġs 2 2s 2 2p 6 3s 2 3p 5 Image source: terpconnect However, in larger concentrations, chlorine can be harmful and even deadly. Chlorine is a necessary nutrient for most plants and animals, including humans, in small quantities. It is primarily found in the form of chloride compounds in salt water and in the Earth’s crust. In its natural form, chlorine is not found as a free element on Earth. It is also commonly used as a disinfectant in water treatment and swimming pools. Chlorine is used in a variety of industrial applications, such as in the production of bleach, solvents, and plastics. It has a pungent odor and is highly toxic. Chlorine is a highly reactive element and exists in nature primarily as the diatomic molecule Cl2.Ĭhlorine is a greenish-yellow gas at room temperature and pressure. It is a non-metal in group 17 of the periodic table, also known as the halogens. Chlorine (Cl) is a chemical element with the atomic number 17 and the symbol Cl. ![]()
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