1.1.3 The nucleus

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Cards (6)

  • Where is the mass of an atom concentrated?
    The nucleus
  • What does the atomic number represent?
    The number of protons in the nucleus
  • What is the mass number?
    The sum of the number of protons and neutrons in the nucleus
  • How do you find the number of neutrons?
    Mass number - Atomic number = neutron number
  • What is the nucleus?
    The central part of an atom
  • True or false: The mass number is unique to an element
    False. The atomic number is