Biología, pregunta formulada por fernando777903, hace 10 meses

un elemento que tiene 7 protones y 9 neutrones y 7 eletrones

Respuestas a la pregunta

Contestado por monitha3230

Respuesta:

Explicación:

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fernando777903: deje la boB@D@ es algo seio

Contestado por maryfebrithanny

Respuesta:

es carbono espero te ayude

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