An imaginary radioactive element ₉₂X²³⁵ decays to form X₁, X₂, X₃, X₄, X₅ and X₆ nuclides, by ejecting two β-particles, followed by α-particles and again two β-particles, followed by α-particle. Represent the various nuclear change in the form of equation. State the mass number and atomic number of X₆. List the isotopes and isobars in the above nuclear equation.