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Sagot :
Answer:
Ar
Explanation:
1s2|2s2 2p6|3s2 3p6 means 2+2+6+2+6=18 electrones. Also it means the number in the table.
According to the №18 the requested element is Argon.
Hello ..
The element is Argon ..
here is a explanation as a video ..
https://youtu.be/2fDwwTnZ2UU
Thank u ..hope it helps ..
Please mark me as brainliest
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