1) Amount 2) Measure 3) Quantity 4) Quantized 1) Quantized 
Describing a condition that can be expressed only as occurring or not occurring, such as death. [2]
[adj] - (physics) of or relating to a quantum or capable of existing in only one of two states
quantal In science, used to describe something that at a given instant can be found in one of two possible states.
quantized adjective of or relating to a quantum or capable of existing in only one of two states
of or pertaining to quanta or quantum mechanics.