OII

See also: oii, Oii, O II, and O-II

Translingual

Alternative forms

• O-II, O II, OII

Etymology

O (“oxygen”)+II (“2”)

Symbol

O_II

1. (chemistry, spectroscopy) singly-ionized oxygen; an atomic oxygen ion needing 1 electron to become neutral

Synonyms

• O⁺
• O¹⁺

Related terms

• O_III (doubly-ionized atomic oxygen)
• O_I (neutral atomic oxygen)
• O (oxygen)

Descendants

• English: O_II emission line, OII emission line, O-II emission line, O II emission line

See also

• O₂ (dioxygen, molecular oxygen)