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Created page with "==Key Stage 4== ===Meaning=== An atom which is excited has an electron in a higher energy level."
==Key Stage 4==
===Meaning===
An [[atom]] which is [[excited]] has an [[electron]] in a higher [[Energy Level|energy level]].
===Meaning===
An [[atom]] which is [[excited]] has an [[electron]] in a higher [[Energy Level|energy level]].