Understanding Isotopes and Their Properties

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Explore the concept of isotopes, atoms of the same element with different numbers of neutrons. Learn about the different types of isotopes, their abundance in nature, and how they affect chemical and physical properties. Discover the stable and unstable isotopes, including radioactive ones that emit energy to become stable. Understand how the masses of isotopes are calculated based on natural abundance and delve into specific isotopes like Carbon-12, Carbon-13, Nitrogen-14, and Nitrogen-15.

  • Isotopes
  • Elements
  • Atomic Structure
  • Chemistry
  • Radioactivity

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  1. Atoms of the same element that have same atomic number but different numbers of neutrons For example there are three hydrogen isotopes

  2. Each of these isotopes have different abundance in nature

  3. Properties of isotopes Isotopes have different neutron number Isotopes have different mass number Chemical and physical properties is the same as that of element There are two types Stable isotope but not radioactive Unstable isotope and radioactive This types emitting energy to be stable like Alpha particles Beta particles Gamma particles

  4. Is the sum of the masses of its isotopes each multiplied by its natural abundance

  5. 12C 13C 35Cl (75.77%) and37Cl (24.23%) 98.9% stable 1.1% stable

  6. 14N 15N 99.6% stable 0.4% stable

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