- atomic number 5 as a noun:
- 1
atomic number 5
noun
1 atomic number 5
A trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder.
Dutch: boor, borium
Polish: B, bor
debug info: 0.0186
noun
A trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder.
Dutch: boor, borium
Polish: B, bor
debug info: 0.0186