The correct molecular formula and chemical name of compound that contain 3 atom of fluorine and one atom of Boron is
BF3 - Boron trifluoride
Explanation
writing the formula
when writing the chemical formula of a compound, the cation symbol is written first followed by anion name. Boron (B) is the cation hence its symbol is written first followed by fluorine (f)- the anion). since there are three atoms of fluorine three is written at the end of F hence
naming the chemical compound
while naming the chemical compound again the cation is named first then anion. The ending of the second name ( fluorine) is replaced with ide, hence the name fluoride. Prefix tri is used to show that the number of fluoride are three, hence the name boron trifluoride
