Question

What’s the answer? Will give brainliest

Answer 1

The two nuclei are Krypton-89 and Barium- 144

Explanation:

The splitting nuclei is a Uranium-235:

          U:

            mass number = 235

            atomic number = 92

         We can write the atom as ²³⁵₉₂U

From the key, a neutron particle collides with the Uranium nuclei. The neutron  is represented as:

                          ¹₀n

Writing the expression  on the left hand side:

                     ²³⁵₉₂U +  ¹₀n

In a fission reaction, a heavy nucleus disintegrates into 2 lighter nuclei and several neutrons with the release of a large amount of energy.

NOTE: In every nuclear reaction, the mass number and atomic number is always conserved.

Problem: To find the unknown nuclei on the right hand side;

        Known:

            3 neutrons;

                   ²³⁵₉₂U +  ¹₀n → 3 ¹₀n + unknown nuclei

To balance the product side,

   mass number = (235+1) - (3x1) = 233

      Atomic number = 92 -3 = 89

from the options given, Krypton and plutonium will fit this:

  Given information of Kr:

           atomic number = 36

           neutron number = 53

             Mass number = atomic number + neutron number = 89

 Given information of Ba:

            atomic number =  56

            neutron number =  88

            mass number =    56+88 = 144

        Complete equation:

                  ²³⁵₉₂U +  ¹₀n → 3 ¹₀n + ¹⁴⁴₅₆Ba + ⁸⁹₃₆Kr

Learn more:

nuclear equation brainly.com/question/10094982

#learnwithBrainly