Just like you should respond to a request for an interview within 24 hours, if your contact follows up with you (good sign!), be sure to reply within one day (and ideally within a few hours).
Aluminum has a density of 2.7 grams per milliliter. An element in the boron group, aluminum is a very light metal, but it is dense enough to sink in water. It is the third most abundant element in the Earthâs crust and is the most abundant metal overall.
Two small aluminum spheres, each having a mass of 0.0600 kg, are separated by 40.0 cm. (a) How many electrons does each sphere contain? (The atomic mass of aluminum is 26.982 g/mol, and its atomic number is 13.) .