What does the symbol "E3" represent?

Chemistry

2 answers:

jenyasd209 [6]2 years ago

4 0

I believe that the answer is B.

shtirl [24]2 years ago

4 0

Answer: The energy of the electron in third energy level.

Explanation: The energy of the electrons depend on the value of n, i.e the value of principal quantum number which tells the shell of the electron.

$E=\frac{-13.6Z^2}{n^2}$

E= energy

Z= atomic number

n= principal quantum number

Thus $E_3$ represents the energy of the electron which is present in n=3.

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The detailed and step by step calculation is shown in the attachment.