Question

What is the name of this element Na3AlO3. ​

Answer 1

Na3AIO3 is the chemical name of  sodium aluminate...
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Answer 2

Explanation:

The given compound shows that there are three sodium atoms, one aluminium atom, and three oxygen atom.

The compound $Na_{3}AlO_{3}$ is a solid and it is an aluminate compound in which the cation is sodium.

Also, this compound contains a polymeric anion.

Therefore, name of the compound $Na_{3}AlO_{3}$ is sodium aluminate.