	$q_{u}$	$q_{d}$	$q_{s}$	$q_{c}$	$q_{b}$	$q_{t}$
Electric charge Q	+2/3	−1/3	−1/3	+2/3	−1/3	+2/3
Isospin I	+1/2	+1/2	0	0	0	0
Third component of isospin I₃	+1/2	−1/2	0	0	0	0
Baryon number B	+1/3	+1/3	+1/3	+1/3	+1/3	+1/3
Strangeness number S	0	0	−1	0	0	0
Charm number C	0	0	0	+1	0	0
Bottom number 𝓑	0	0	0	0	−1	0
Top number T	0	0	0	0	0	+1