What is the energy of a photon that emits a light of frequency 6.42 x 10¹⁴ Hz?

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

27. =3,500,000 x 4,000 = 14,000,000,000

The ratio is 3: 2. i.e. c.