![]() ![]() Which alkali metal can easily be cut?Īns: Sodium, an alkali metal, is very soft and can easily be cut by a knife. When exposed to air, they tarnish due to oxidation. They are soft enough to be cut with a knife. This property is what makes them so reactive. They have one valence electron in the outermost shell, which they seek to lose to have a fully-filled outer shell. What are the three properties of alkali metals?Īns: The three properties of alkali metals are as follows: It has been included because of the similarity of the electronic configuration with the elements of alkali metals. Alkali metals are highly reactive at standard temperature and pressure and readily lose their outermost electron to form cations with charge 1.Īns: No, hydrogen is not an alkali metal. These metals, therefore, liberate hydrogen from water, acids, and acetylene.Īns: The alkali metals are a group of chemical elements from the s-block of the periodic table with similar properties: they appear silvery and can also be cut with a plastic knife. The members of alkali metals are powerful reducing agents since they have low ionization energy. Reducing Character – The reducing nature of an element is expressed in terms of its electrons releasing tendency. Group I of the modern Periodic table comprises six elements- Lithium \(\) where M is an alkali metal, and X is a halogen.Ħ. This article will cover the general characteristics of the first group of elements of the s-block that is Alkali Metals. Therefore, based upon the sub-shell in which the last electron enters, the table is divided into four blocks – s, p, d, and f. Alkali Metals: We all know that the Long Form Periodic Table is based on the Modern Periodic Law, which states that elements’ physical and chemical properties are a periodic function of their atomic numbers. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |