da Maria Martinez mancano 4 anni
2000
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Make a weekly plan, fill in each task and then check them off as the week advances.
Friday
We all love Friday! And it's finally here. Look back at what you've managed to achieve this week and check what's in the pipeline for today.
Wednesday
Wednesdays are like Mondays in the middle of the week, they say. You're halfway through the week, see what plans you have set for today.
Negativa
Un electrón gana o comparte electrones si es un no metal.
Positiva
El átomo cede o pierde uno o más electrones al combinarse.