Answer:
particle E and R
Explanation:
isotopes = atoms of same element with same proton number but different number of neutron
nucleon number = proton number + number of neutrons
particle E
- nucleon number = 16
- proton number = electron = 8
- number of neutrons = 16-8 = 8 ✅
particle Q
- nucleon number = 18
- proton number = electron = 9
- number of neutrons = 18-9 = 9
particles R^2-
- nucleon number = 18
- proton number = 10-2 = 8
- number of neutrons = 18-10 = 8 ✅
particle T^+
- nucleon number = 22
- proton number = 10+1 = 11
- number of neutrons = 22-11 = 10
