Answer:
The percent composition of fluorine is 65.67%
Explanation:
Percent Composition is a measure of the amount of mass an element occupies in a compound. It is measured in percentage of mass.
That is, the percentage composition is the percentage by mass of each of the elements present in a compound.
The calculation of the percentage composition of an element is made by:

In this case, the percent composition of fluorine is:

percent composition of fluorine= 65.67%
<u><em>The percent composition of fluorine is 65.67%</em></u>
Electron was discovered by J. J. Thomson in 1897 when he was studying the properties of cathode ray.
Alkynes are hydrocarbons with at least one triple covalent bond.
Answer:
with the proton inside the nucleus