jscaldwell04 jscaldwell04

25-01-2021
Chemistry

contestada

What element has an energy level Electron Configuration of 2-8-18-8?

Argon
Calcium
Krypton
Chlorine

Respuesta :

25-01-2021

answer:

krypton.

explanation:

it is a noble gas, so has full-valence shell. also, reference back to the periodic table.

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