Some of the elements in this column also react vigorously with water and must be stored carefully. Like the alkali metals, the alkaline earth metals are silvery, shiny and relatively soft. The elements in group 2, known as the alkaline earth metals (except helium), always lose their two valence electrons to make a +2 ion. They are kept in mineral oil to reduce the chance of an unwanted reaction or worse, an explosion. These metals react extremely vigorously with water and even oxygen to produce energy and flammable hydrogen gas. These metals are characterized by being silvery, very soft, not very dense and having low melting points. The elements in group 1, known collectively as the alkali metals (except hydrogen), always lose their one valence electron to make a +1 ion. In fact, they lose their trademark s orbital valence electrons so easily that the s- elements are some of the most reactive elements on the periodic table. They lose their valence electrons easily. In general, they are shiny, silvery, good conductors of heat and electricity. Properties of s- elements Īll of the s- elements are metals (except Hydrogen). These repeating properties have been used to separate the elements into four s. The modern periodic law says that "The properties of elements are periodic function of their atomic number." This means that some properties of elements are repeated as the atomic number of the elements gets larger. The elements in group two are called the alkaline earth metals. The elements in group one are called the alkali metals. Elements in the s- are in the first two periodic table groups. The electron in their most outward electron shell are in the s-orbital. The element of s- group have a common property. The s-block is one of four blocks of elements in the periodic table. You can help Wikipedia by reading Wikipedia:How to write Simple English pages, then simplifying the article. The English used in this article or section may not be easy for everybody to understand.
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