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Rubidium

A rare metallic element. It occurs quite widely, but in small quantities, and always combined. It is isolated as a soft yellowish white metal, analogous to potassium in most of its properties. Symbol Rb. Atomic weight, 85.2.

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Reviewed alternatives and contrasts

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Broader term 1

Metal 76% connected

An elementary substance, as sodium, calcium, or copper, whose oxide or hydroxide has basic rather than acid properties, as contrasted with the nonmet…

oewn 2023 0% interchangeable

Open English WordNet identifies the related term as a broader lexical category for at least one sense.

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Containing substance 3

Carnallite 70% connected

A hydrous chloride of potassium and magnesium, sometimes found associated with deposits of rock salt.

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Lepidolite 70% connected

A species of mica, of a lilac or rose-violet color, containing lithia. It usually occurs in masses consisting of small scales. See Mica.

oewn 2023 0% interchangeable

Open English WordNet identifies the related term as a containing group, substance or whole.

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Pollucite 70% connected

A colorless transparent mineral, resembling quartz, occurring with castor or castorite on the island of Elba. It is a silicate of alumina and caesia.…

oewn 2023 0% interchangeable

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Words from the same subject

These terms belong to the same specialist field or topic. They help you explore the subject, but they are not automatically synonyms.

Complex noun · 85% connection

a compound described in terms of the central atom to which other atoms are bound or coordinated

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Coordination compound noun · 85% connection

a compound described in terms of the central atom to which other atoms are bound or coordinated

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Organometallic compound noun · 85% connection

a compound containing an alkyl or aryl radical bonded to a metal.; "Tetracarbonyl nickel, and ferrocene are examples of organometallic…

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Metallic element noun · 85% connection

any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Hydrochloride noun · 84% connection

a complex consisting of an organic base in association with hydrogen chloride

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Al noun · 84% connection

a silvery ductile metallic element found primarily in bauxite

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Aluminium noun · 84% connection

a silvery ductile metallic element found primarily in bauxite

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Aluminum noun · 84% connection

a silvery ductile metallic element found primarily in bauxite

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Am noun · 84% connection

a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Antimony noun · 84% connection

a metallic element having four allotropic forms; used in a wide variety of alloys; found in stibnite

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Atomic number 11 noun · 84% connection

a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); bur…

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Atomic number 19 noun · 84% connection

a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abun…

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Ba noun · 84% connection

a soft silvery metallic element of the alkali earth group; found in barite

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Barium noun · 84% connection

a soft silvery metallic element of the alkali earth group; found in barite

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Be noun · 84% connection

a light strong brittle grey toxic bivalent metallic element

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Beryllium noun · 84% connection

a light strong brittle grey toxic bivalent metallic element

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Bismuth noun · 84% connection

a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product…

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Cadmium noun · 84% connection

a soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores

Used in the same subject area: Inorganic chemistry, Chemistry, General chemistry.
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Words connected by meaning

Their definitions overlap or refer to similar ideas. Use these to widen your search, then compare the exact meanings.

Fluorine noun · 78% connection

A non-metallic, gaseous element, strongly acid or negative, or associated with chlorine, bromine, and iodine, in the halogen group of…

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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Gallium noun · 78% connection

a rare silvery (usually trivalent) metallic element; brittle at low temperatures but liquid above room temperature; occurs in trace am…

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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Glucinum noun · 78% connection

A rare metallic element, of a silver white color, and low specific gravity (2.1), resembling magnesium. It never occurs naturally in t…

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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Gold verb · 78% connection

A metallic element, constituting the most precious metal used as a common commercial medium of exchange. It has a characteristic yello…

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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Ho noun · 78% connection

a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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Holmium noun · 78% connection

a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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In noun · 78% connection

a rare soft silvery metallic element; occurs in small quantities in sphalerite

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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Indium noun · 78% connection

a rare soft silvery metallic element; occurs in small quantities in sphalerite

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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Iodine noun · 78% connection

A nonmetallic element, of the halogen group, occurring always in combination, as in the iodides. When isolated it is in the form of da…

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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La noun · 78% connection

a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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Lanthanum noun · 78% connection

a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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Lithium noun · 78% connection

A metallic element of the alkaline group, occurring in several minerals, as petalite, spodumene, lepidolite, triphylite, etc., and oth…

Its definition shares important concepts with this word: rare, metallic, element, occurs, quite.
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