A proton has a relative charge of +1.
What is the relative charge on a beta-minus (β−\beta^-β−) particle?
−2-2−2
−1-1−1
000
+2+2+2
Practise Edexcel GCSE Physics Atomic structure and ionising radiation with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Physics (1PH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.