Aluminum metals when crystallizes form an FCC structure. If the edge of the unit cell is 353.56 pm, what is the diagonal length of each face of each unit cell?

You are given the density of a metal as 2.07 g/cm³. You are advised the crystallographic structure is fcc, and the atomic mass is 25.5 g/mol. What is the atomic radius of the metal? a. 0.15 nm b. 0.12 nm c. 0.11 nm d. 0.18 nm

Project 4: a) Discuss the properties that related to FCC metals and compare it with SC and BCC structure. b) Compare between simple cubic cell (SC), body-centred cubic cell (BCC), face-centred cubic cell (FCC) and hexagonal close-packed cell (HCP) from all aspect Such as; the relation between a and R, and give some examples for each of them. c) Make a prototype for each one of them.

1. Is there a difference in packing (coordination number) between these two types (FCC and HCP) of structures?   2. Look at the two structures. A small difference in arrangement of atoms causes a dramatic difference in the properties of FCC ductile metals and HCP brittle metals. Can you see it? Try to draw the differences (You can draw the 3-layers separately):

Lead and Aluminum both have FCC crystal structures.  Given the following information and knowing that solid aluminum has a density of 2.71 g/cm3, determine the density of solid lead in g/cm3   Atomic Weight (amu) Atomic Radius (nm) Aluminum 26.98 0.143 Lead 207.2 0.175

Calculate the density (in g/cm3) of the atomic structure with a radius of 0.267 nm and an atomic weight of 52.1g/mol. It has an FCC crystal structure. Use 3 decimal place accuracy and ONLY enter a number answer. Answer: