

at the risk of looking like a tool;
2 c (i) 4 protons, 2 neutrons
2 c (ii) 218 protons, 86 neutrons (can't see the bottom number I think it's 88)
2 c (iii) 3.75 days
Am I right?

Awesome!Donald wrote:No
c(i) 2 protons, 2 neutrons
c(ii) 218, 84
c(iii) [actually d] 3.8
Although the third one can be forgiven due to the poor quality of wurly's image.