bn:00006880n
Noun Concept
Categories: Chemical elements with rhombohedral structure, Nuclear fusion fuels, Dietary minerals, Articles with short description, Pyrotechnic fuels
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boron  B  atomic number 5  Boron Chemistry  5B
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A trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder WordNet 3.0
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A trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder WordNet 3.0 & Open English WordNet
Boron is a chemical element; it has symbol B and atomic number 5. Wikipedia
Chemical element with symbol B and atomic number 5. Wikipedia Disambiguation
chemical element with symbol B and atomic number 5 Wikidata
A very hard almost colourless crystalline metalloid element that in impure form exists as a brown amorphous powder. It occurs principally in borax and is used in hardening steel. OmegaWiki
The chemical element (symbol B) with an atomic number of 5, which is a metalloid found in its pure form as a dark amorphous powder. Wiktionary
Chemical element. Wiktionary (translation)
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