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The mercury atom is excited one of its electrons goes from an upper electron shell to a lower electron shell thanks to some energy that it recives from the outside. When an atom is excited it is instable ...

Normalmente, me gusta salir al cine con mis amigas durante el fin de semana. A veces voy a dar una vuelta con mi perro en el parque porque hay que decir que es importante que cuidemos de nuestra salud y e...

The formula for calculating capacity Utilisation = output ÷ capacity x 100 

We are told capacity that the restaurants maximum capacity is 65 and output is 42 (people dining each night)

There...