1.

A nucleus 11Na24 emits a beta particle to change into Magnesium(Mg)(i) Write the symbolic equation for the process.(ii) What are numbers 24 and 11 called?(iii) What is the general name 2412Mg with respect to 2411Na?

Answer»

(i) 11Na24 → 12Mg24 + -1e0 + energy

(ii) 24 -  mass no.(no. of protons and neutrons)

11 - atomic number(no. of protons)

(iii) 11Na24 is called  parent nuclei. 

12Mg24 is called daughter product.



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