Which has magic number of neutrons?

Which of the following has magic number of neutrons?

Which of the following has magic number of neutrons?

A light nuclide that has n//p ratio 2 and has magic number of neutrons but still shows radioactivity a. ._(2)He^(4) b. ._(1)He^(3) c. ._(1)H^(2) d. ._(2)He^(3)

A light nuclide that has n//p ratio 2 and has magic number of neutrons but still shows radioactivity a. ._(2)He^(4) b. ._(1)He^(3) c. ._(1)H^(2) d. ._(2)He^(3)

What are magic numbers ?

Which of the following has magic number of protons and neutrons?

Which of the following has magic number of protons and neutrons?

Which of the following has magic number of protons and neutrons? a. ._(82)Pb^(208) b. ._(2)He^(3) c. ._(50)Sn^(120) d. ._(82)Pb^(206)