help wrote:SOMEONE HELP ME WITH THIS PROBLEM!
The radius of a fluorine atom is 72 x 10-12 m. What is the radius in angstroms?
Be careful with scientific notation. The first number should always be written as a number between 1 and 10, so 72 x 10E-12 m should be written as 7.2 x 10E-11 m, or simply 7.2E-11 m
7.2E-11 m = 72 pm (picometer) = 0.72 angstrom
Note: With a little research, you’ll find the 72 pm atomic radius is not absolute for fluorine.