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* What element has an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 and which block is it in? Use the periodic table.
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* What element has an electron configuration of

1s2 2s2 2p6 3s2 3p6 4s2 and which block is it in? Use the periodic table.

User Wuchang
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1 Answer

2 votes

Answer:

phosphorus

Step-by-step explanation:

User Joseph Ghassan
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