Answer to Question #52251 in Physical Chemistry for vi

Question

Which of the following elements, if doped into silicon, would give an n-type semiconductor?
Al
P
C
O
12 The density of a crystal depends on all the following except __________.
Number of atoms
Its mass
Its geometry
Volume of the unit cell
13 Which of the following is not true of liquids?
The inability of a liquid to flow enables it to assume the shape of the container
A liquid never expands to fill the container
The characteristics of a liquid lie between those of a solid and a gas
Particles of liquid are free to move from one point to another
14 Which group of elements in the periodic table is known for semiconductor behaviour?
group I
group II
group III
group IV
15 Which of the following is a pure substance made up of one type of atom?
An element
A mixture
A compound
A solution

Answer 1

11. P
12. Its geometry
13. The inability of a liquid to flow enables it to assumethe shape of the container
14. group IV
15. An element