Answer:
B and C
Step-by-step explanation:
Firstly it is not A because an alpha particle has a mass and atomic number of 2. So it would be written 2, 2, alpha.
Next, we can see by its mass number of 1 that it has one nucleon (Confirming C) as electrons have negligible mass. Because it has then has an atomic number of 0, we can conclude that it is a neutron, as a proton would have given it an atomic number of 1. This proves B to be correct and D to be incorrect.
E is incorrect as beta particles have negligible mass.
F could be correct but there is no way to tell whether or not it has an electron so we cannot tick it.
Finally G is incorrect because we already worked out the one nucleon has to be a neutron.
Hope this helped!
