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Rufina [12.5K]
2 years ago
9

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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Explanation:

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When should you read the label on a chemical container?
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What is the percent magnesium in a sample made of 24g Mg and 70gCl?
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Answer:

Total percent of magnesium in sample = 25.5%

Explanation:

Given:

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