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3. Which is the correct electrons configurations of argon 18? A.1s 2s22p6 B.1s22s22p63s1 C. 1s22s22p6352 D.1s22s22p63s23p​

Sagot :

A.

Explanation:

Therefore the Argon electron configuration will be 1s22s22p63s23p6. Because the third energy level has eight electrons and is therefore full (3s23p6) it is called a noble gas.

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