Alkaline earth

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characterizing adjective (chemistry)

Definition

Pertaining to or characteristic of the group of bivalent chemical elements in group 2 of the periodic table (such as beryllium, magnesium, calcium, strontium, barium, and radium). The name originates from the fact that the oxides of these metals exhibit pronounced alkaline properties and were historically called 'earths' due to their insolubility and high resistance to elevated temperatures.

Bilingual Equivalents

  • Alkaline earth
  • Alkaline-earth

Grammatical & Source Details

Inflection Type Variable compound adjective with standard masculine, feminine, and structural plural morphological variations.
Formation Hyphenated compound adjective combining the combining form 'alkalino-' with 'earthy' to mirror the classical chemical grouping.
Spelling / Pronunciation [ˌæl.kə.laɪn ˈɜːrθ]
Source The IUPAC Gold Book of Chemical Terminology

Contextual Usage Examples

RO: Magneziul este un metal alcalino-pământos esențial pentru desfășurarea normală a proceselor biochimice din celulele umane.

EN: Magnesium is an alkaline earth metal essential for the normal deployment of biochemical processes within human cells.

RO: Orice element alcalino-pământos reacționează cu apa, deși mult mai lent decât metalele alcaline din prima grupă.

EN: Any alkaline earth element reacts with water, though much slower than the alkali metals of the first group.

RO: Profesorul a prezentat o mostră pură de bariu, explicând caracteristicile acestei structuri de tip alcalino-pământos.

EN: The professor presented a pure sample of barium, explaining the characteristics of this alkaline earth-type structure.

Idioms & Phrases

Metal alcalino-pământos / Alkaline earth metal

RO: Oricare dintre cele șase elemente chimice cu doi electroni pe stratul de valență care formează grupa a II-a principală.

EN: Any of the six chemical elements with two electrons in their valence shell that make up main group 2.

Sare de metal alcalino-pământos / Alkaline earth metal salt

RO: Compus ionic obținut prin reacția dintre un acid și un hidroxid de calciu, magneziu ori bariu.

EN: An ionic compound obtained through the reaction between an acid and a calcium, magnesium, or barium hydroxide.

Oxid alcalino-pământos / Alkaline earth oxide

RO: Compoziție chimică binară cu o temperatură de topire extrem de ridicată, utilizată pe scară largă în industria materialelor refractare.

EN: A binary chemical composition with an extremely high melting temperature, widely utilized in the refractory materials industry.

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