Q: Q: Each silicon atom shares how many valence electrons with other silicon atoms in a crystal?   A:
A: four

Q: Q: What leads to the buildup of electric charges on objects?   A:
A: polarization

Q: Q: What does an ammeter measure the flow of?   A:
A: current through a circuit

Q: Q: Which metalloids are found in the nitrogen group?   A:

A: arsenic and antimony