1. boron [ Synonyms: atomic number 5, b] | |
A trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
|
بورَک يا بورَک ايسڈ کا غير دھاتی عنصر۔ |
Software for Aluminum Business Inventory and Accounts Management Software for Aluminum Businesses in ... Read more