The electron configuration 1s², 2s², 2p⁶, 3s², 3p³ corresponds to the elementphosphorus. The first two shells are full, with 2 electrons in each shell. The third shell has 2 electrons in the 3s subshell and 3 electrons in the 3p subshell. Hence option D is correct.Phosphorus is a chemical element with the symbol P andatomic number15. It belongs to Group 15 (or Group V) of the periodic table, which is also known as thenitrogen group.Here are some key features and characteristics of phosphorus:Phosphorus is a non-metal, and at room temperature, it exists in severalallotropes. The most common forms are white phosphorus, red phosphorus, and black phosphorus.White phosphorus is a highly reactive and toxic waxy solid, while red phosphorus is less reactive and is often used in safety matches. Black phosphorus is asemiconductormaterial with interesting electronic properties.Therefore option D) phosphorous is correct.To know mroe aboutphosphorus:brainly.com/question/17130833#SPJ3...

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