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20-12-2020
Chemistry

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how to determine the electron configuration simply by looking at the periodic table.

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20-12-2020

Answer:

To write electron configuration of an element, locate its symbol in ADOMAH Periodic Table and cross out all elements that have higher atomic numbers. For example, if you need to write electron configuration of Erbium (68), cross out elements 69 through 120. Notice numbers 1 through 8 at the base of the table.

Explanation:

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