en el simulador phet en la construcción del átomo estable de berilio, el átomo quedo de la siguiente manera: 4 protones, 4 electrones y 5 neutrones. ¿cuál será su numero de masa (a)?

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Julia went to work for a reputed company. under pressure from upper management to cut costs, she directed line employees to ignore some safety precautions, which increased productivity. which argument of institutional anomie theory does this support? businesses set effective moral examples. businesses resort to illegal means to earn profits. businesses focus on public welfare. businesses fairly distribute profits. businesses employ only legal means to earn profits.

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