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An atom of an element X.has the electron...

An atom of an element X.has the electronic con figuration a, a + b, 2(b - 1), and a. Identify the atomic number of the element.

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The correct Answer is:
22
The electronic configuration of element X is 2, 8, 10, and 2. The atomic number of the element is 22. Hence, the correct answer is 22.
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