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maskythegamer
03.07.2019 •
Chemistry
Calculate the energy associated with red light with a wavelength of 725 nm
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Ответ:
Given:
Wavelength (λ) of red light = 725 nm
To determine:
Energy associated with the given wavelength
Explanation:
The relation between energy (E) and wavelength (λ) is given as-
E = hc/λ
where : h = Planck's constant 6.626 * 10⁻³⁴ Js
c = speed of light = 3*10⁸ m/s
E = 6.626*10⁻³⁴ Js * 3*10⁸ ms⁻¹/725*10⁻⁹ m = 2.74*10⁻¹⁹ J
Ans: Energy associated with a wavelength of 725 nm is 2.72*10⁻¹⁹ J
Ответ:
Hence, closer is the number of neutrons to the number of protons more stable will be the nucleus. Thus, we can conclude that a nuclei with 10 protons, 12 neutrons would be the most stable.
Explanation: