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Înveliș de electroni

Chimie

Învățarea rapidă, interactivă și distarctivă a repartizării electronilor pe straturi.

Fisa de lucru-structura atomului

Chimie

Este o fișă de lucru care poate fi folosită și ca test pentru a verifica deprinderea de a scrie simbolurile chimice, de a calcula nr. de electoni și modul de repartizare al acestor pe straturi pentru elementele de la Z=1 la Z=20

Atomul

Chimie

Structura atomului și a învelișului de electroni

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