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Encyclopedia > Alkaline earth metal
Group 2
Period       
2 4
Be
3 12
Mg
4 20
Ca
5 38
Sr
6 52
Ba
7 87
Ra

The alkaline earth metals are a series of elements comprising Group 2 (IUPAC style) of the periodic table: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra). The alkaline earth metals provide a good example of group trends in properties in the periodic table, with well characterised homologous behaviour down the group. A periodic table group is a vertical column in the periodic table of the chemical elements. ... In the periodic table of the elements, a period is a row of the table. ... A period 2 element is one of the chemical elements in the second row (or period) of the periodic table of the elements. ... General Name, symbol, number beryllium, Be, 4 Chemical series alkaline earth metals Group, period, block 2, 2, s Appearance white-gray metallic Standard atomic weight 9. ... A period 3 element is one of the chemical elements in the third row (or period) of the periodic table of the elements. ... General Name, symbol, number magnesium, Mg, 12 Chemical series alkaline earth metals Group, period, block 2, 3, s Appearance silvery white solid at room temp Standard atomic weight 24. ... A period 4 element is one of the chemical elements in the fourth row (or period) of the periodic table of the elements. ... For other uses, see Calcium (disambiguation). ... A period 5 element is one of the chemical elements in the fifth row (or period) of the periodic table of the elements. ... General Name, Symbol, Number strontium, Sr, 38 Chemical series alkaline earth metals Group, Period, Block 2, 5, s Appearance silvery white metallic Standard atomic weight 87. ... A period 6 element is one of the chemical elements in the sixth row (or period) of the periodic table of the elements, including the Lanthanides. ... For other uses, see Barium (disambiguation). ... A period 7 element is one of the chemical elements in the seventh row (or period) of the periodic table of the elements. ... General Name, Symbol, Number radium, Ra, 88 Chemical series alkaline earth metals Group, Period, Block 2, 7, s Appearance silvery white metallic Standard atomic weight (226) g·mol−1 Electron configuration [Rn] 7s2 Electrons per shell 2, 8, 18, 32, 18, 8, 2 Physical properties Phase solid Density (near r. ... sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex... The periodic table of the chemical elements A chemical element, or element, is a type of atom that is defined by its atomic number; that is, by the number of protons in its nucleus. ... A periodic table group is a vertical column in the periodic table of the chemical elements. ... The International Union of Pure and Applied Chemistry (IUPAC) is an international non-governmental organization devoted to the advancement of chemistry. ... “The Periodic Table” redirects here. ... General Name, symbol, number beryllium, Be, 4 Chemical series alkaline earth metals Group, period, block 2, 2, s Appearance white-gray metallic Standard atomic weight 9. ... General Name, symbol, number magnesium, Mg, 12 Chemical series alkaline earth metals Group, period, block 2, 3, s Appearance silvery white solid at room temp Standard atomic weight 24. ... For other uses, see Calcium (disambiguation). ... General Name, Symbol, Number strontium, Sr, 38 Chemical series alkaline earth metals Group, Period, Block 2, 5, s Appearance silvery white metallic Standard atomic weight 87. ... For other uses, see Barium (disambiguation). ... General Name, Symbol, Number radium, Ra, 88 Chemical series alkaline earth metals Group, Period, Block 2, 7, s Appearance silvery white metallic Standard atomic weight (226) g·mol−1 Electron configuration [Rn] 7s2 Electrons per shell 2, 8, 18, 32, 18, 8, 2 Physical properties Phase solid Density (near r. ...


The alkaline earth metals are silvery colored, soft, low-density metals, which react readily with halogens to form ionic salts, and with water, though not as rapidly as the alkali metals, to form strongly alkaline (basic) hydroxides. For example, where sodium and potassium react with water at room temperature, magnesium reacts only with steam and calcium with hot water: This article is about metallic materials. ... This article is about the chemical series. ... For other meanings of the word salt see table salt or salt (disambiguation). ... Impact from a water drop causes an upward rebound jet surrounded by circular capillary waves. ... The alkali metals are a series of elements comprising Group 1 (IUPAC style) of the periodic table: lithium (Li), natrium (Na), kalium (K), rubidium (Rb), caesium (Cs), and francium (Fr). ... In chemistry, an alkali (from Arabic: al-qalyالقلوي, القالي ) is a basic, ionic salt of an alkali metal or alkali earth metal element. ... Acids and bases: Acid-base reaction pH Self-ionization of water Buffer solutions Systematic naming Acid-base extraction Acidity function Proton affinity Acids: Strong acids Weak acids Superacids Lewis acids Mineral acids Organic acids Bases: Strong bases Weak bases Superbases Lewis bases Organic bases edit In chemistry, a base is... Hydroxide is a polyatomic ion consisting of oxygen and hydrogen: OH− It has a charge of −1. ... For sodium in the diet, see Edible salt. ... General Name, symbol, number potassium, K, 19 Chemical series alkali metals Group, period, block 1, 4, s Appearance silvery white Standard atomic weight 39. ... General Name, symbol, number magnesium, Mg, 12 Chemical series alkaline earth metals Group, period, block 2, 3, s Appearance silvery white solid at room temp Standard atomic weight 24. ... For other uses, see Steam (disambiguation). ... For other uses, see Calcium (disambiguation). ...


Mg + 2H2O → Mg(OH)2 + H2


Beryllium is an exception: It does not react with water or steam, and its halides are covalent. General Name, symbol, number beryllium, Be, 4 Chemical series alkaline earth metals Group, period, block 2, 2, s Appearance white-gray metallic Standard atomic weight 9. ...


All the alkaline earth metals have two electrons in their outermost shell, so the energetically preferred state of achieving a filled electron shell is to lose two electrons to form doubly charged positive ions. For other uses, see Electron (disambiguation). ... Example of a sodium electron shell model An electron shell, also known as a main energy level, is a group of atomic orbitals with the same value of the principal quantum number n. ... Electric charge is a fundamental conserved property of some subatomic particles, which determines their electromagnetic interaction. ... In common usage positive is sometimes used in affirmation, as a synonym for yes or to express certainty. Look up Positive on Wiktionary, the free dictionary In mathematics, a number is called positive if it is bigger than zero. ... This article is about the electrically charged particle. ...


The alkaline earth metals are named after their oxides, the alkaline earths, whose old-fashioned names were beryllia, magnesia, lime, strontia and baryta. These oxides are basic (alkaline) when combined with water. "Earth" is an old term applied by early chemists to nonmetallic substances that are insoluble in water and resistant to heating--properties shared by these oxides. The realization that these earths were not elements but compounds is attributed to the chemist Antoine Lavoisier. In his Traité Élémentaire de Chimie (Elements of Chemistry) of 1789 he called them salt-forming earth elements. Later, he suggested that the alkaline earths might be metal oxides, but admitted that this was mere conjecture. In 1808, acting on Lavoisier's idea, Humphry Davy became the first to obtain samples of the metals by electrolysis of their molten earths. An oxide is a chemical compound containing an oxygen atom and other elements. ... Beryllium oxide (BeO) is a white crystalline oxide. ... Magnesium oxide, or magnesia, is a white solid mineral that occurs naturally as periclase and is a source of magnesium. ... Calcium oxide (CaO), commonly known as lime, quicklime or burnt lime, is a widely used chemical compound. ... Strontium oxide or strontia, SrO, is formed when strontium reacts with oxygen. ... Barium hydroxide is a basic chemical compound, with the chemical formula Ba(OH)2. ... A chemical compound is a chemical substance of two or more different chemically bonded chemical elements, with a fixed ratio determining the composition. ... Antoine-Laurent de Lavoisier (August 26, 1743 – May 8, 1794), the father of modern chemistry [1], was a French nobleman prominent in the histories of chemistry, finance, biology, and economics. ... Year 1789 (MDCCLXXXIX) was a common year starting on Thursday (link will display the full calendar) of the Gregorian calendar (or a common year starting on Monday of the 11-day slower Julian calendar). ... Year 1808 (MDCCCVIII) was a leap year starting on Friday (link will display the full calendar) of the Gregorian calendar (or a leap year starting on Wednesday of the 12-day slower Julian calendar). ... Sir Humphry Davy, 1st Baronet, FRS (17 December 1778 – 29 May 1829) was a British chemist and physicist. ... This article is about the chemical process. ...


Connor is the shit

The alkaline earth metals.
The alkaline earth metals.
  • Beryllium's low aqueous solubility means it is rarely available to biological systems - it has no known role in living organisms, and wowAcantharea, which uses strontium sulphate to build its exoskeleton). These elements have some uses in medicine, for example "barium meals" in radiographic imaging, whilst strontium compounds are employed in some toothpastes.
  • Radium has a low availability and is highly radioactive, making it toxic to life.


hell ya Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... The Acantharea are a small group of radiolarian protozoa, distinguished mainly by their skeletons. ... An exoskeleton is an external anatomical feature that supports and protects an animals body, in contrast to the internal endoskeleton of, for example, a human. ... Preprepared Barium Sulfate suspension for oral consumption A barium meal is a procedure in which barium sulfate is ingested by a patient and, in conjunction with X-rays, images depicting the digestive system: the distal esophagus, stomach and duodenum, are obtained. ... Modern toothpaste gel Toothpaste is a paste or gel dentifrice used to clean and improve the aesthetic appearance and health of teeth. ...


References

  • Group 2 - Alkaline Earth Metals, Royal Chemistry Society.
  • Group 1 Alkali Metals and Group 2 Alkaline Earth Metals, Doc Brown's Chemistry Clinic.
  • Science aid: Group 2 Metals Study aid for teens
  • Maguire, Michael E. "Alkaline Earth Metals." Chemistry: Foundations and Applications. Ed. J. J. Lagowski. Vol. 1. New York: Macmillan Reference USA, 2004. 33-34. 4 vols. Gale Virtual Reference Library. Thomson Gale.
Explanation of above periodic table slice:
Alkaline earth metals Atomic numbers in black indicate solids Solid borders indicate primordial elements (older than the Earth) Dashed borders indicate natural radioactive elements with no isotopes older than the Earth

  Results from FactBites:
 
Method of making alkaline earth metal halophosphate phosphor using metal phosphide reducing agent - Patent 5350540 (1605 words)
Metal phosphide used as a raw material in the synthesis of alkaline earth metal halophosphate phosphor activated by antimony and manganese acts as a reducing agent to prevent oxidation of the antimony and manganese.
Synthesis of alkaline earth metal halophosphate phosphor activated by antimony and manganese requires that the activators be provided in their lowest oxidation states, that is, trivalent (3.sup.+) antimony and divalent (2.sup.+) manganese.
We have found that during the synthesis of alkaline earth halophosphate phosphor activated by antimony and manganese, the addition of a metal phosphide as a raw material will ensure that the antimony and manganese activators are available in their lowest oxidation states (that is, trivalent antimony and divalent manganese).
Alkaline earth metal Summary (3421 words)
The alkaline earth metals, like the alkali metals, are too reactive to be found in nature except as their compounds; the two valence electrons completing an s-subshell are readily lost, and ions with +2 charges are formed.
The alkaline earth metals are the series of elements in Group 2 (IUPAC style) of the periodic table: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra) (though radium is not always considered an alkaline earth due to its radioactivity).
The alkaline earth metals are silvery colored, soft, low-density metals, which react readily with halogens to form ionic salts, and with water, though not as rapidly as the alkali metals, to form strongly alkaline (basic) hydroxides.
  More results at FactBites »

 
 

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