Protons, neutrons, and electrons: Both protons and neutrons have a mass of 1 amu and are found in the nucleus. However, protons have a charge of +1, and neutrons are uncharged. Electrons have a mass of approximately 0 amu, orbit the nucleus, and have a charge of -1.
Answer: D.Jim crow laws Explanation: Jim crows laws refer to a local law that enforce Racial segregation that being implemented in Southern States of USA, which separate public services based on race.
