Which of these best describes one of the subatomic particles that could be found at location X in the model of an atom shown on the left? (STAAR 8.5A & 8.3B)
Select one:
O a. It has mass but no charge.
O b. It has a large mass and a negative charge.
O c. It has no mass and a positive charge.
O d. It has no mass and an equal number of positive and negative charges.