Question

PENN FOSTER!! NEED ANSWER ASAP!

Combining which of the following substances with germanium will cause the germanium to emit free electrons?

A. Gallium
B. Bismuth
C. Aluminum
D. Indium

Answer 1

B. Bismuth

Step-by-step explanation:

Just took the test it is correct! :)

Answer 2

B. Bismuth maybe..

I thought that it was A. Gallium, but its apparently wrong

so good luck ima try B right now because im on the same thing.......

YEP THIS IS CORRECT THE ANSWER IS B