Quanta
photons
Discrete packages of light energy are called photons. Photons are also the quanta of all other electromagnetic radiation, not just light.
Light travels in the form of discrete paritcles called photons. These are measured by a unit called quantum.
The mean of a discrete probability distribution is also called the Expected Value.
A set which is made up only of isolated points is called a discrete set.
genes
The theory that energy can be released only in definite packages is known as quantum theory. In quantum theory, energy exists in discrete units called quanta, which means that energy can only be emitted or absorbed in specific amounts. This concept is fundamental to understanding the behavior of particles at the atomic and subatomic level.
photon
Discrete Mathematics is mathematics that deals with discrete objects and operations, often using computable and/or iterative methods. It is usually opposed to continuous mathematics (e.g. classical calculus). Discreteness here refers to a property of subjects of discourse. Some collection of things is called discrete if these things are distinguishable and not continuously transformable into each other. An example would be the collection of natural numbers, but not the real numbers. In topology, a space is called discrete if every subset is open. In constructivism, a set is called discrete if equality of two elements is always decidable.
That would be a discrete variable; or, in your case, it would probably be called a discrete random variable.
This is called a discrete set (all points isolated) or a finite set. Finite sets are always discrete.
The enrgy is always lost or gained in only the definite amount that is called as discrete or packet energy.