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ziro4ka [17]
3 years ago
5

Which electron transition represents a gain of energy?

Chemistry
1 answer:
xz_007 [3.2K]3 years ago
5 0

The correct answer is (A) from 2nd to 3rd shell.


The explanation :


when a gain of energy is the shift of the electrons from a shell of low energy to the shell of high energy


and we have here 2nd shell is the shell of low energy, and 3rd shell is the shell of high energy.


∴ (A) from 2nd to 3rd shell is the correct answer.

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Explanation:

There are different ways in which compounds can be represented. Broadly, we have three different types of formula;

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The ratio of the elements is; 2 : 4 which can be simplified into 1 : 2

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