Penn 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

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

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.