SAT, 29.12.2021 14:00 grettelyesenia

What is the electron configuration of an element with atomic number 15? a. 1s2 2s2 2p6 b. 1s2 2s2 2p6 3s2 3p5 c. 1s2 2s2 2p6 3s2 3p3 d. 1s2 2s2 2p6 3s2 e. 1s2 2s2 2p6 3p3 3s2 3p1.

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What is the electron configuration of an element with atomic number 15? a. 1s2 2s2 2p6 b. 1s2 2s2 2p...

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