Fewer electrons than a normal conductor. Silicon "doped" in this way is called N-type silicon. When you add boron instead of antimony, it takes away some of the electrons in the silicon, leaving "holes" as "negative electrons." Next, the positive current is transmitted in the opposite way. This type of silicon is called P-type. N-type and P-type silicon regions are placed side by side to form a junction in which electrons act in a very attractive way, which is how we electronically produce semiconductor devices such as diode tubes and memory.