1/16/2024 0 Comments S block![]() Potassium is essential to several aspects of plant, animal, and human life and is thus mined, manufactured, and consumed in huge quantities around the world. 13.5: Chemistry of Potassium (Z=19) In its pure form, potassium has a white-sliver color but it quickly oxidizes upon exposure to air, tarnishing in minutes if it is not stored under oil or grease.As the sixth most abundant element in the Earth's crust, sodium compounds are commonly found dissolved in the oceans, in minerals, and even in our bodies. 13.4: Chemistry of Sodium (Z=11) Sodium is metallic element found in the first group of the periodic table.Because of its reactive properties, humans have utilized lithium in batteries, nuclear fusion reactions, and thermonuclear weapons. It is understood to be non-vital in human biological processes, although it is used in many drug treatments due to its positive effects on the human brain. 13.3: Chemistry of Lithium (Z=3) Chlorine is a halogen in Lithium is a rare element found primarily in molten rock and saltwater in very small amounts.Reactions of Group 1 Elements with Water.Reactions of Group 1 Elements with Oxygen.Reactions of Group 1 Elements with Chlorine.All these characteristics can be attributed to these elements' large atomic radii and weak metallic bonding. They also have low boiling and melting points and are less dense than most elements. These metals are characterized by their soft texture and silvery color. They tend to donate their electrons in reactions and have an oxidation state of +1. This is due in part to their larger atomic radii and low ionization energies. 13.2: Reactivity of Group 1 Metals Alkali metals are among the most reactive metals.Sections below cover the trends in atomic radius, first ionization energy, electronegativity, melting and boiling points, and density. 13.1: Properties of Group 1 Metals This page discusses the trends in some atomic and physical properties of the Group 1 elements - lithium, sodium, potassium, rubidium and cesium.
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