Unlike conventional nuclear reactors, fusion reactors cannot melt down and do not produce radioactive material that can be weaponized or that requires special disposal. Safety and environmental concerns with fusion reactors are minimal, and the deuterium and lithium required for fuel can be extracted from seawater.

When the nucleus of an atom splits into lighter nuclei through a nuclear reaction the process is termed nuclear fission. Nuclear fusion is a reaction through which two or more light nuclei collide with each other to form a heavier nucleus.

The nuclear fusion is defined as the joining of the two or more small atoms to form a large atom. In nuclear fission it requires less energy to divide atoms into two or more ones. In nuclear fusion a massive amount of energy is required to combine small atoms in a form of large atom.

What is the difference between nuclear fission and nuclear fusion? Nuclear fusion is the process where 2 or more atoms collide at high speeds to form a new type of atomic nucleus. Nuclear fission is the process of an atom splitting into 2 atoms.

thermonuclear bomb, also called hydrogen bomb, or H-bomb, weapon whose enormous explosive power results from an uncontrolled self-sustaining chain reaction in which isotopes of hydrogen combine under extremely high temperatures to form helium in a process known as nuclear fusion.

A pure fusion weapon is a hypothetical hydrogen bomb design that does not need a fission “primary” explosive to ignite the fusion of deuterium and tritium, two heavy isotopes of hydrogen used in fission-fusion thermonuclear weapons.

As opposed to the atomic bomb – the kind dropped on Japan by the US in the closing days of World War II – the hydrogen bomb can be 1,000 times more powerful. The hydrogen bomb, also called a thermonuclear bomb, uses fusion – or atomic nuclei coming together – to produce explosive energy.

Nuclear Fusion reactions power the Sun and other stars. In a fusion reaction, two light nuclei merge to form a single heavier nucleus. The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei. The leftover mass becomes energy.