Show the location of a tetrahedral void for BCC crystal structure. Indicate the coordinate of the void. Determine the number of tetrahedral voids per BCC unit cell.

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?

Asolid that forms and separates from a liquid mixture is called