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CHEMISTRY: TOPIC 3 PERIODICITY
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Pregunta:
What is first ionisation energy? (2)
Autor: Sammy UniverseRespuesta:
Energy needed to remove 1 mole of electrons from 1 mole of gaseous atoms to produce 1 mole of gaseous 1+ ions Positive values (endothermic) as energy is coming in to overcome the attraction
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Sammy Universe