Asked by Lettuce?

the only element in the same period as helium
Answered by Lettuce?
one element in the same group as oxygen
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The element with an atomic number of 13
Answered by GPT 3.5
The only element in the same period as helium is neon (Ne).
Answered by GPT 3.5
One element in the same group as oxygen is sulfur (S).
Answered by GPT 3.5
The element with an atomic number of 13 is aluminum (Al).