select the correct answer.\nwhich of these elements has two electrons in its outer p orbitals?\na. helium…

select the correct answer.\nwhich of these elements has two electrons in its outer p orbitals?\na. helium (he)\nb. barium (ba)\nc. nitrogen (n)\nd. silicon (si)\ne. sulfur (s)

select the correct answer.\nwhich of these elements has two electrons in its outer p orbitals?\na. helium (he)\nb. barium (ba)\nc. nitrogen (n)\nd. silicon (si)\ne. sulfur (s)

Answer

Brief Explanations:

  1. Analyze each element's electron configuration to find outer p orbital electrons:
    • Helium (He): Atomic number 2, electron configuration $1s^2$. It has no p orbitals.
    • Barium (Ba): Atomic number 56, electron configuration $[Xe]6s^2$. Its outer orbital is an s orbital, no p electrons.
    • Nitrogen (N): Atomic number 7, electron configuration $1s^22s^22p^3$. It has 3 outer p electrons.
    • Silicon (Si): Atomic number 14, electron configuration $1s^22s^22p^63s^23p^2$. It has 2 outer p electrons.
    • Sulfur (S): Atomic number 16, electron configuration $1s^22s^22p^63s^23p^4$. It has 4 outer p electrons.

Answer:

D. silicon (Si)