What are some examples of fission reaction?

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In fission, energy is gained by splitting apart heavy atoms, for example, uranium, into smaller atoms such as iodine, caesium, strontium, xenon and barium, to name just a few. However, fusion is combining light atoms, for example, two hydrogen isotopes, deuterium and tritium to form

For example, uranium can fission to yield strontium and krypton. Fusion joins atomic nuclei together. The element formed has more neutrons or more protons than that of the starting material. For example, hydrogen and hydrogen can fuse to form helium.

A. public ExtendedController(ApexPages.StandardController cntri) { }

Explanation:

A wizard is generally referred to as the tab sequence that contains the back button as well as the next button. It usually accepts information (i.e. data) from the inputs of users from different pages of the visualfoce as well as a variable from the previous website. The statement in option A is unnecessary for the application of the custom controller.