The concept of the destruction of matter is based on the idea that matter can be completely annihilated, converting into energy, according to the equation E=mc^2, where E is energy, m is mass, and c is the speed of light.

Albert Einstein first proposed the idea of the destruction of matter in his theory of special relativity, which showed that mass and energy are equivalent and can be converted into each other.

The experimental evidence that supports the concept of the destruction of matter comes from the observation of nuclear reactions, where matter is converted into energy.

The equation that describes the conversion of mass into energy is E=mc^2, where E is energy, m is mass, and c is the speed of light.

Annihilation is the process in which matter is converted into energy, according to the equation E=mc^2.

Fusion is the process in which two atomic nuclei combine to form a single nucleus, releasing a large amount of energy.

Fission is the process in which a single atomic nucleus splits into two or more smaller nuclei, releasing a large amount of energy.

Radioactive decay is the process in which an unstable atomic nucleus emits radiation and transforms into a more stable nucleus.

The three main types of radioactive decay are alpha decay, beta decay, and gamma decay.

An alpha particle is a helium nucleus, consisting of two protons and two neutrons.

A beta particle is an electron or a positron.

A gamma ray is a high-energy photon.

The half-life of a radioactive substance is the time it takes for half of the substance to decay.

The SI unit of radioactivity is the becquerel (Bq), which is defined as the activity of a radioactive substance in which one nucleus decays per second.

The SI unit of absorbed dose is the gray (Gy), which is defined as the absorption of one joule of radiation energy per kilogram of matter.

The SI unit of equivalent dose is the sievert (Sv), which is defined as the absorbed dose multiplied by a weighting factor that accounts for the biological effectiveness of the radiation.