What is the average density a single Al-27 atom? Assume that it is a sphere with a radius of 0.143 nm. The masses of proton, electron, and neutron are , , and , respectively. The volume of a sphere is , where r is its radius. Express the answer in grams per cubic
centimeter.

If the density of aluminum is found experimentally to be , what does that suggest about the packing of aluminum atoms in the metal?

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Domarth DuqueLv10

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Calculate the average density of a single Al-27 atom by assuming that it is a sphere with a radius of 0.143nm. The masses of a proton, electron, and neutron are 1.6726 x 10-²⁴g, 9.1094 x 10^-28g, and 1.6749 x 10^-24g respectively. The volume of a sphere is 4πr³/3, where r is its radius. Express the answer in grams per cubic centimeter. The density of aluminum is found experimentally to be 2.70 g/cm³. What does that suggest about the packing of aluminum atoms in the metal?

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Calculate the average density of a single Al-27 atom by assuming that it is a sphere with a radius of 0.143 nm. The masses of a proton, electron, and neutron are:

1.6726 X 10^-24g; 9.1094 X 10^-28g and 1.6749 X 10 ^-24g respectively. The volume of a sphere is 4πr³/3, where r is its radius. Express the answer in grams per cubic centimetre. The density of aluminium is found experimentally to be: 2.70 g/cm³. What does that suggest about the packing of aluminium atoms in the metal?