Respuesta :

Answer:

here is your answer

Explanation:

1. sodium sodium is very reactive metal

2. when it exposed in air it automatically form Na2O.

3. when when it put in water it reacts visoroustly and start burning on water.

( due to this it is called active element)

The other answer here is correct, but if you’re looking from a more structural view then here is it:
Sodium has only one electron it it’s outermost orbital, and because of this it has a really high tendency In giving up that electron in order to get into a more stable electron configuration.
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