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Isotopes definitions

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  • Isotope
    Variation of an element with identical proton count but differing neutron count, resulting in distinct mass numbers.
  • Atomic Number
    Value represented by Z, indicating the proton count and determining an element’s identity on the periodic table.
  • Mass Number
    Sum of protons and neutrons in an atom’s nucleus, symbolized by A, used to distinguish isotopes.
  • Proton
    Positively charged particle found in the nucleus, its quantity defines the element’s atomic number.
  • Neutron
    Uncharged particle located in the nucleus, its number varies among isotopes of the same element.
  • Electron
    Negatively charged particle orbiting the nucleus, balancing protons in a neutral atom.
  • Nucleus
    Central region of an atom containing protons and neutrons, accounting for most atomic mass.
  • Periodic Table
    Tabular arrangement of elements, organized by atomic number, revealing element identity and trends.
  • Neutral Atom
    Species with equal numbers of protons and electrons, resulting in no overall electric charge.
  • Element
    Substance defined by a unique number of protons, represented by a specific atomic number.
  • Chemical Property
    Characteristic behavior of an element, influenced by atomic structure and discussed in later chapters.
  • Identity
    Distinct classification of an atom, determined solely by its proton count.
  • Charge
    Electrical property resulting from the balance or imbalance of protons and electrons in an atom.