Respuesta :
The symbol "E3" represents the energy of electrons in the third energy level.
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Answer:
E₃ = energy in third energy level.
Explanation:
The energy of an electron is third orbit is given by :
[tex]E=-\dfrac{13.6Z^2}{n^2}[/tex]
Where
Z is the atomic number
n is principal quantum number and n = 1,2,3....
i.e. the energy of an electron is inversely proportional to the principal quantum number.
E₁,E₂,E₃.......... shows the energy of an electron in first, second and third energy level respectively.
