Question

what is meaning of nuclear fission and nuclear fusion​

Answer 1

Answer:

in nuclear fission one heavy nucleus breaks into two danghter nuclei but the atomic number and mass number same while in fusion two nuclei adds up to one nuclei

Answer 2

Answer:

Nuclear fission...

• nuclear fission means split up.
• The process in which the heavy nucleus of the radioactive atom (such as uranium, plutonium or thorium) split up into smaller nuclei when bombarded with low energy neutrons is called Nunclear fission.
• Nuclear Fusion .....
• it is the source of energy in the sun and other stars.
• when two nuclei of light elements ( like h2 ) combine to form a heavy nucleus ( like he) and tremedondous of energy is released is called nuclear fusion.