Gallium crystallizes in a primitive cubic unit cell. The length ...

[altibaby]

Gallium crystallizes in a primitive cubic unit cell. The length of the unit cell edge is 3.70 . The radius of a Ga atom is ________ .
 
  A) 7.40
  B) 3.70
  C) 1.85
  D) 0.930
  E) Insufficient data is given.

Question 2

To convert from one resonance structure to another, ________.
 
  A) only atoms can be moved
  B) electrons and atoms can both be moved
  C) only electrons can be moved
  D) neither electrons nor atoms can be moved
  E) electrons must be added

[orangecrush]

Answer to Question 1

C

Answer to Question 2

C