Question
Wed October 17, 2012 By: Jayaprakash
 

in my question I have asked about Rb86 and you have given wrong answer

Expert Reply
Thu October 18, 2012
which of the following species is isotonic with 37^Rb ^86
1)38 sr 87
2)36Kr 84
3)38 Y 89
4)37Rb85
and what the word meaning isotonic
 
 

In Rb-86, there are protons = 37 and neutrons = 49
 
In Sr, P = 38, N= 49
 
In Y, P = 39, N = 51 
 
In Kr, P= 36, N= 48
 
Rb-85, P = 36, N = 48
 
Isotonic species are atoms or ions that have the same number of neutrons. So, Rb is isotonic with Stroncium. (Rb-86 and Rb-85 are isotopes)
 
 
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