Josie M.
asked • 01/22/20
Jesse E. answered • 01/22/20
Masters in Chemistry and Bachelors in Biology
I agree with Lucio's answer. The only thing I would add is more information. Natural potassium has three isotopes. There is a third isotope with 21 neutrons with an abundance of 0.01 % and 6.73 % respectively.
The other isotopes with 20 and 22 neutrons have an abundance of 93.26 % and 6.73 %, respectively.
Lucio F. answered • 01/22/20
PhD in Physical Chemistry with 10+ years in Science and Engineering
Since K is atomic number 19, it has 19 protons. It would need 20 neutrons to get to K 39. So K 41 has 19 protons and 22 protons. The difference between each of those isotopes is 2 neutrons. Cheers!
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Jesse E.
I respectfully disagree. I believe more information increases the student's knowledge and provides context to the question so the student can use this knowledge in working other problems.02/13/20