What is the empirical formula of a substance with the molecular formula Se8F12?

Se2F3
Se4F4
SeF
Se8F12

Which of the following statements is true about planck’s law

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.

What is another way to determine mass times acceleration?