after putting in a job application two weeks went by and no response.so i commited myself to working on a friends house for money,well after i started working on the house the place called,but i couldnt stop on the house.i was told if you dont hear something in a week they are not intertested in you .how long...
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.
(The atomic mass of aluminum is 26.982 grams per mole, and its atomic number is 13.) The attempt at a solution. I said that there are 6.02*10^23 atoms in a mole, and noted that after converting the mass into grams each sphere has .9265 moles. If the Aluminum spheres are uncharged there are 13 electrons per atom. I multiplied all three together to get 7.25*10^24 total electrons, but this comes up as the wrong answer.