39Quarks Leptons AntiparticlesHard1 mark
In a type of beta decay, an up quark changes flavour to a down quark.
Which row shows the new hadron created in this beta decay and the sign of the charge on the
emitted beta particle?
| hadron created | sign of charge on emitted beta particle | |
|---|---|---|
| A | neutron | + |
| B | neutron | – |
| C | proton | + |
| D | proton | – |