In classical physics, mass is considered a continuous quantity, meaning it can take on any value. However, in the realm of quantum mechanics, the fundamental theory governing the behavior of particles at the microscopic level, the concept of mass is not quantized in the same way as other properties like energy and angular momentum.
In quantum mechanics, particles are described by wavefunctions that represent the probability distribution of their properties, such as position, momentum, and energy. Mass is a property associated with particles, but it does not have a discrete or quantized nature in the same sense as certain other physical quantities.
It's important to note that the term "quantum of mass" is not commonly used or recognized in the field of physics. The fundamental building blocks of matter, such as electrons and quarks, have intrinsic properties like mass, but the concept of a discrete unit of mass is not a central feature of quantum mechanics.