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Posted by **michelle** on Tuesday, December 4, 2012 at 4:33pm.

Magic # of protons: 2,8,20,28,50,82

Magic # of neutrons: 2,8,20,38,50,82,126, 184

Using general trends, predict the stability of the following nuclei.

Either STABLE or RADIOACTIVE

A)arsenic-82

B)calcium-40

C)radium-233

D)potassium-44

E)zinc-64

(I figured B would be stable because it falls under the magic numbers list. Also I think C would be radioactive because it does not seem to fit with the others)

- chemistry -
**michelle**, Tuesday, December 4, 2012 at 4:40pmjust a guess but would all but C be stable?

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