10(b)
(i) Define nuclear fission.
(ii) Rewrite and complete the following nuclear reaction by filling in the atomic number of Ba and mass number of Kr :
$_{92}^{235}\text{U}$ + $_{0}^{1}\text{n}$ ⟶ $_{...}^{144}\text{Ba}$ + $_{36}^{...}\text{Kr}$ + 3 $_{0}^{1}\text{n}$ + Energy
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(i) The process of splitting of a heavy nucleus into two lighter nuclei of nearly same mass, when bombarded with slow neutrons, is called nuclear fission.
(ii) $_{92}^{235}\text{U}$ + $_{0}^{1}\text{n}$ ⟶ $_{56}^{144}\text{Ba}$ + $_{36}^{89}\text{Kr}$ + 3 $_{0}^{1}\text{n}$ + Energy