Atomic structure

• What always remains the same in atoms of a particular element?

  The number of protons
• What happens if the number of protons is different in an atom?

  The atom is a different element
• What does the atomic number represent?

  The number of protons in an atom
• How does the number of electrons compare to the number of protons in an atom?

  They are the same
• Why do atoms have no overall charge?

  Because the positive and negative charges cancel out
• What does the mass number of an atom indicate?

  The total mass of an atom, made up of protons and neutrons
• How do you find the number of neutrons in an atom?

  Subtract the atomic number from the mass number
• What are the main components of an atom that should be labeled?

  • Protons
  • Neutrons
  • Electrons
  • Shell
  • Nucleus
• Atoms are neutral, meaning they have equal numbers of positive and negative charges.