Isotopes differ in
Correct answer: A. properties which depend upon mass
- A. properties which depend upon mass
- B. The arrangement of electrons in orbitals
- C. chemical properties
- D. All of the above
Explanation
Isotopes of an element have the same number of protons (same atomic number), which means they belong to the same chemical element and have identical chemical properties. However, they differ in their mass numbers due to a different number of neutrons in their nuclei.The differences in mass between isotopes can affect certain physical properties, such as density or boiling point, that depend on the mass of the particles. For example, heavy water (deuterium oxide), which contains the isotope deuterium (2H), has different physical properties compared to regular water (H₂O) due to the increased mass of deuterium.Therefore, the correct answer is (a) properties which depend upon mass.
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About Fundamental Concepts of Chemistry
Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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