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valentinaportugal
UNIDAD NUMERO 1- EL ATOMO
El àtomo es elèctricamente neutro, porque tiene la misma cantidad de protones y de electrones.
El àtomo es elèctricamente neutro, porque tiene la misma cantidad de protones y de electrones.
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Mostrando entradas con la etiqueta protones y electrones. Mostrar todas las entradas
Mostrando entradas con la etiqueta protones y electrones. Mostrar todas las entradas
