Alkaline earth metals are a series of items in the second group of the periodic table, namely: beryllium, magnesium, calcium, Stranhim, barium, radium (not always considered radium from within elements of those smooth because the half-life to him a few.
Was named alkaline earth metals that name on the basis of oxides, metals dirt, which was the old names: Brilla (beryllia), Majncia (magnesia), Lime (lime), Strontea (strontia), Baretta (baryta). It has been named the alkali oxides ground due to the nature that lies between alkali (alkali metal oxides) and rare earth metals (oxides of rare earth metals). The system followed by the Greeks of the first systems that have been used to label the elements, which are used four key elements, including the soil. The development of this system later by philosophers old and chemists such as Aristotle (Aristotle) century fourth BC, Paracelsus (Paracelsus) the first half of the 16th century, John Becher (John Becher) the mid-17th century, George Stahl (Georg Stahl) late 17th century , it has been rated the dirt later for three or more types. It was the realization that these compounds are not elements but compounds by Antoine Lavoisier (Antoine Lavoisier) in his book (Elements of Chemistry) in 1789 was named the salts formed from dirt elements. He has later proposing that it be possible that the metal oxides. The Hamfiry Dave (Humphry Davy) got the first samples of the metals by electrolysis.
Alkaline earth metals are silvery color, but not solid, a low-density metals and reacts rapidly with halogens to form ionic salts, and with water to form strongly alkaline hydroxides (base), but not at the same speed the interaction of alkali metals. For example, while sodium and potassium with water at room temperature, magnesium reacts reacts only with steam and calcium reacts with hot water. These elements have Aketronan in the outer shell, so it can reach a better situation in terms of energy (full cover letter) by lost two electrons to form a moiety (Ioana) positive bilaterally.
Was named alkaline earth metals that name on the basis of oxides, metals dirt, which was the old names: Brilla (beryllia), Majncia (magnesia), Lime (lime), Strontea (strontia), Baretta (baryta). It has been named the alkali oxides ground due to the nature that lies between alkali (alkali metal oxides) and rare earth metals (oxides of rare earth metals). The system followed by the Greeks of the first systems that have been used to label the elements, which are used four key elements, including the soil. The development of this system later by philosophers old and chemists such as Aristotle (Aristotle) century fourth BC, Paracelsus (Paracelsus) the first half of the 16th century, John Becher (John Becher) the mid-17th century, George Stahl (Georg Stahl) late 17th century , it has been rated the dirt later for three or more types. It was the realization that these compounds are not elements but compounds by Antoine Lavoisier (Antoine Lavoisier) in his book (Elements of Chemistry) in 1789 was named the salts formed from dirt elements. He has later proposing that it be possible that the metal oxides. The Hamfiry Dave (Humphry Davy) got the first samples of the metals by electrolysis.
Alkaline earth metals are silvery color, but not solid, a low-density metals and reacts rapidly with halogens to form ionic salts, and with water to form strongly alkaline hydroxides (base), but not at the same speed the interaction of alkali metals. For example, while sodium and potassium with water at room temperature, magnesium reacts reacts only with steam and calcium reacts with hot water. These elements have Aketronan in the outer shell, so it can reach a better situation in terms of energy (full cover letter) by lost two electrons to form a moiety (Ioana) positive bilaterally.
