C1.2.2 Isotopes

    Cards (34)

    • Isotopes have the same chemical properties because they have the same number of protons and electrons.

      True
    • Steps to explain why isotopes are isotopes using carbon as an example:
      1️⃣ Carbon has two common isotopes: carbon-12 and carbon-14
      2️⃣ Both have 6 protons
      3️⃣ Carbon-12 has 6 neutrons
      4️⃣ Carbon-14 has 8 neutrons
    • The mass number is the total number of protons and neutrons in the nucleus of an atom.
    • The atomic number of an element determines its chemical behavior.

      True
    • The atomic number is the number of protons in the nucleus of an atom.
    • Carbon-12 and carbon-14 have the same number of protons but different numbers of neutrons.

      True
    • What is the mass number of an atom?
      Protons + Neutrons
    • The mass number includes both protons and neutrons.
    • Carbon-12 is written as ^12^C in isotope notation.

      True
    • Radioactive isotopes undergo decay to achieve a more stable configuration.

      True
    • What defines isotopes of the same chemical element?
      Same Protons, Different Neutrons
    • Isotopes are represented using the element symbol and the mass number.
    • Carbon-12 and carbon-14 share the same number of protons
    • What results from isotopes having the same number of protons but different neutrons?
      Same atomic number, different mass numbers
    • The mass number in isotope notation is written as a superscript to the left of the element symbol
    • Steps involved in radioactive decay:
      1️⃣ Imbalance in protons and neutrons
      2️⃣ Radioactive decay occurs
      3️⃣ Emission of particles or energy
      4️⃣ Achieving a more stable configuration
    • Isotopes are atoms of the same chemical element that have the same number of protons in the nucleus but a different number of neutrons.neutrons
    • Isotopes are often represented using the element symbol and mass number, e.g. ^14^C for the carbon-14 isotope.symbol
    • Carbon-14 is a stable isotope of carbon.
      False
    • Match the atomic property with its definition:
      Mass Number ↔️ Protons + Neutrons
      Atomic Number ↔️ Protons only
      Symbol for Mass Number ↔️ A
      Symbol for Atomic Number ↔️ Z
    • Carbon-12 has 6 neutrons while carbon-14 has 8 neutrons.
    • Isotopes share the same atomic number
    • Carbon-14 is a radioactive isotope.
    • What is the atomic number of an atom?
      Number of Protons
    • How is the mass number written in isotope notation?
      Superscript to the Left
    • The stability of isotopes depends on the balance between protons and neutrons.
    • What are the three types of radioactive decay?
      Alpha, Beta, Gamma
    • Isotopes have the same chemical properties but can have different physical properties.
      True
    • What are isotopes defined as in terms of protons and neutrons?
      Same protons, different neutrons
    • Carbon-12 is stable, while carbon-14 is radioactive.
      True
    • The mass number includes both protons and neutrons, while the atomic number only counts protons.

      True
    • What is the proton-to-neutron ratio in stable isotopes?
      Balanced
    • Radioactive isotopes undergo decay to achieve stability.

      True
    • Match the hydrogen isotope with its unique name:
      Hydrogen-1 ↔️ Protium
      Hydrogen-2 ↔️ Deuterium
      Hydrogen-3 ↔️ Tritium
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