Answer:
See explanation
Explanation:
The energy of a photon refers to the energy carried by each photon. The energy of a photon is inversely related to its wavelength.
This simply means that the longer the wavelength of a photon, the lower the energy of the photon.
200nm is longer than 130nm, therefore, 130nm photon has more energy than 200nm photon.
This explains the fact that photons with wavelength 130 nm cause the ejection of 6 s electrons from gold, but photons with wavelength 200 nm do not.
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Non metals form molecules in group 7 of the periodic table
