# Question

Which one of each of the following pairs of nuclei would you expect it to be easier to remove a neutron from:

(a) 168O or 178O;

(b) 4020Ca or 4220Ca;

(c) 105B or 115B;

(d) 20882Pb or 20983Bi? State your reasoning for your choice in each case.

(a) 168O or 178O;

(b) 4020Ca or 4220Ca;

(c) 105B or 115B;

(d) 20882Pb or 20983Bi? State your reasoning for your choice in each case.

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