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As you go down the group, there is an additional electron shell added each time (1). These electron shells hold negatively charged electrons that shield the positive nucleus from the outer shell electron....
As you go down the group, there is an additional electron shell added each time (1). These electron shells hold negativley charged electrons that shield the positive nucleus from the outer shell electron....
Ghrelin and leptin are the two main hormones associated with the control of eating. Ghrelin, which is released from the stomach, activates the hypothalamus and increases a person's appetite. The levels of...
Simply put, it is down to the attraction between positive and negative particles. The protons within the nucleus of an atom make the nucleus 'positive'. In contrast, electrons are 'negative'. If you imagi...
Age classification is an important part of film distribution. Without knowing the age rating for a film, a potentially underage audience member could watch harmful content. However ratings are predominate...
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