swang6699 swang6699

12-10-2020
Chemistry

contestada

An element that is considered to be unreactive
because it has a filled outer energy level is
1. silver.
2. hydrogen.
3. helium.
4. lithium.

Respuesta :

brycen1204 brycen1204

13-10-2020

Answer:

3

helium

Explanation:

Answer Link

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