Fallout.
The radioactive dust that forms after a nuclear explosion is called "fallout." It consists of particles that have been contaminated by radioactive material and can be carried by wind over long distances, posing a health risk to humans and the environment.
If atoms are radioactive, they can emit alpha,beta, or gamma radiation. The energy of the particles or rays emitted depends on the exact isotopes concerned, and varies widely from one to another.
a nuclear explosion
The process is called radioactive decay. During this process, an unstable isotope will emit nuclear radiation in the form of alpha particles, beta particles, or gamma rays in order to reach a stable configuration with a balanced number of protons and neutrons.
This is known as nuclear fission; the type of reaction that brings us nuclear power.
Nuclear Fusion. This process involves 'fusing' together two smaller nuclei to form a bigger nucleus.
This process is called particle radiation or particle emission, and it occurs when high-energy particles such as alpha particles, beta particles, or gamma rays are released from the nucleus of an atom. This emission can happen during radioactive decay or in nuclear reactions.
Atomic bombs, as they were called in the 40s, are nuclear weapons which use the properties of radioactive material to create an extremely powerful explosion. The explosion involves a huge release of energy and very damaging radiation. Look up "atom bombs" and you are likely to find a range of explanations.
The name for the emissions of rays and particles by a radioactive material are called radioactive decay. There are many different types of radioactive decay that emit different rays and particles.
A nuclear explosion releasing energy equivalent to seven million tons of TNT is called a megaton explosion.
Unwanted radioactive products formed during nuclear reactions are called nuclear waste or radioactive waste. These byproducts are often harmful to the environment and can remain radioactive for long periods of time, presenting challenges for disposal and management.
Can be alpha, beta particles in radioactive decay, or neutrons in fission. There is also gamma ray energy which is part of the EM spectrum I believe the answer your looking for is Radiation