Question 82

Which one the following sets of ions represents the collection of isoelectronic species?

Solution

Share

Isoelectronic species are atoms, molecules, or ions that have the same number of electrons.

  • A: $$K^+$$ (18e⁻), $$Ca^{2+}$$ (18e⁻), $$Sc^{3+}$$ (18e⁻), $$Cl^-$$ (18e⁻)
  • B: $$Na^+$$ (10e⁻), $$Mg^{2+}$$ (10e⁻), $$Al^{3+}$$ (10e⁻), but $$Cl^-$$ has 18e⁻.
  • C: $$K^+$$ (18e⁻), $$Cl^-$$ (18e⁻), $$Sc^{3+}$$ (18e⁻), but $$Mg^{2+}$$ has 10e⁻.
  • D: $$Na^+$$ (10e⁻), $$F^-$$ (10e⁻), but $$Ca^{2+}$$ and $$Sc^{3+}$$ both have 18e⁻.
    Hence,
    A: $$K^+, Ca^{2+}, Sc^{3+}, Cl^-$$.

    • Get AI Help

    Video Solution

    video

    Create a FREE account and get:

    • Free JEE Mains Previous Papers PDF
    • Take JEE Mains paper tests

    Other Cracku’s Useful Resources:

    JEE Questions JEE Question Bank JEE Mains Previous Papers JEE Advanced Previous Papers JEE Study Material PDF JEE Mains Mock Test JEE Advanced Mock Test JEE Daily Target

    Free JEE Questions

    JEE Physics Questions JEE Maths Questions JEE Chemistry Questions
    banner

    banner

    Ask AI