Number 1 is 4.875 Number 2 is 3.47 repeating
2 the answer is 2 because 1.0 * 2 =2
it would be a crystalline solid, because it could be extended in multiple directions.
Mechanical twinning occurs in metals having body center cubic and hexagonal closed packed structures. Twinning is said to occur when a portion of a crystal takes up an orientation that is related to the orientation of the untwinned lattice in a definite symmetrical manner.
