What is this element?
1s22s22p63s2
Magnesium
Aluminum
Potassium
Neon...
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Chemistry, 03.11.2020 03:20, iamsecond235p318rq
What is this element?
1s22s22p63s2
Magnesium
Aluminum
Potassium
Neon
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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