Sunday

January 25, 2015

January 25, 2015

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?

**Answer this Question**

**Related Questions**

Chemistry - Elements with an even number of protons and neutrons A. never ...

Science Help! - Lisa studied the models of three carbon nuclei shown below. She ...

Math - A magic square is a square of numbers with each row, column, and diagonal...

Math - A magic square is a square of numbers with each row, column, and diagonal...

Interpretation of fiction - I was wondering if anyone has read the novela "Aura...

Chemistry - I would really appreciate help with the following, as I don't ...

Chemistry - one of the tin isotopes has 50 protons and 63 neutrons. another ...

English Grammar - * We are now passing by Magic Castle. What is the part of ...

chemistry - name the elementwhich has the following numbers of particles: a.26 ...

math - justify that15 is the sum of eachrow of a 3X3 magic square using the ...