The atoms of a metalloid have 6 valence electrons. the metalloid is used as a semiconductor. which best describes the electron shell in which the valence electrons are located?

a. the electron shell should be small so that electrons are more easily gained.
b. the electron shell should be large so that electrons are more easily gained.
c. the electron shell should be small so that the electrons are more easily lost.
d. the electron shell should be large so that the electrons are more easily lost.