name the ionic species formed from: sodium & oxygen\nsodium oxygen\noxygen monosodium\noxosodiumide\n sodium…

Brief Explanations:

Sodium is a metal and oxygen is a non - metal. They form an ionic compound through electron transfer. Sodium loses one electron to form $Na^+$ and oxygen gains two electrons to form $O^{2-}$. The compound formed is sodium oxide ($Na_2O$), which is an ionic species.

Answer:

D. sodium oxide