kantu -ka'u- gismu

x1 is a quantum/ray/elementary particle/smallest measurable increment of property/activity x2.

Quantum ray (= bonka'u). (cf. selci for masses and most objects; ratni, gradu, gusni, nejni, linji)


In notes:

gradu
x1 [magnitude] is a unit/degree of/on scale/reference standard x2 (si'o) measuring property x3.
gusni
x1 [energy] is light/illumination illuminating x2 from light source x3.
linji
x1 is a line/among lines [1-dimensional shape/form] defined by set of points x2.
nejni
x1 is energy of type x2 in form x3.
ratni
x1 is an atom of element/atomic number x2 of isotope number/atomic weight x3.
selci
x1 is a cell/atom/unit/molecule of x2; x1 is an indivisible, most basic subunit of x2.
guska'u
x1 is a photon.
zgika'u
k1 is a music note (tone).
zgika'usni
s1 is a music note (symbol).
kazra
x1 is quantum mechanical in property x2 with behavior/traits/result x3; x1 demonstrates quantum weirdness/quantum mechanical nature.
kantrbocuni
x1 is a boson (quantum wave-particle obeying Bose–Einstein statistics) of type x2 in quantum state/with properties x3
kantrfermini
x1 is a fermion (quantum wave-particle/quanton obeying Fermi-Dirac statistics) of type x2 in quantum state/with properties x3
kuarka
x1 is a quark with flavor x2.