What is the energy of a microwave photon that has a frequency of 9.86 x 1012 Hz?

E = 65.37×10⁻²² J

Explanation:

Given data:

Energy of photon = ?

Frequency of photon = 9.86×10¹² Hz

Solution:

Formula:

E = h.f

Here h is planck's constant its value is 6.63×10⁻³⁴ js.

E = 6.63×10⁻³⁴ js × 9.86×10¹² Hz

  Hz =  s⁻¹

E = 65.37×10⁻²² J

The energy of photon is 65.37×10⁻²² J.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.