atomic number 5 definition

  • noun:
    • a trivalent metalloid element; does occur in both a hard black crystal and in the type of a yellow or brown dust
    • a trivalent metalloid element; happens both in a tough black crystal and in the form of a yellow or brown dust

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  • Definition for "atomic number 5"
    • a trivalent metalloid element; does occur in both…
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  • Hypernym for "atomic number 5"
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