Aluminum β is a solid phase of aluminum still unknown to science. The only difference between it and ordinary aluminum is that Aluminum β forms a crystal with a bcc unit cell and a lattice constant a=331. pm. Calculate the density of Aluminum β Round your answer to 3 significant digits.

yes

explanation:

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since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.