Balance the nuclear reactions given below by placing the correct mass number or

Question

Balance the nuclear reactions given below by placing the correct mass number or atomic symbol in the box provided.
If you don't know the atomic numbers or symbols of nuclei, you can find a simple periodic table of the elements online at
http://www.webelements.com/

12C +   12C ? ___ Ne +   4He

13C +   14N ?    Ne +   4He +   1 __

For this part of the problem you will have to identify both the mass number and the atomic number (and symbol) for the missing nuclear reaction product.
Note that a proton (p) is the same as 1H for purposes of balancing this equation and the "n" is a neutron.

p +   18O ? __ __ + 4He + n

Explanation / Answer

6 C12 + 6C12 -----------> 10Ne20 + 2He4

6C13 + 7N14 ------------> 10Ne22 + 2He4 + 1H1

1P1 + 8O18 ---------------> 7N14 + 2He4 + 0n1

  note that left subscript are atomic numbers and right superscript are the atomic mass. Also

C ,Ne ,He,N,O are carbon ,neon , nitrogen and oxygen atoms respectively. P and H are protons

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