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## Homework Statement

Complete the following nuclear reactions, assuming that the unknown quantity signified by a question mark is a single entry. Use the following table for your answers: 0 = gamma, 1 = p, 2 = alpha , 3 = n.

(a) 20X43(alpha,?)21X46

(b) 4X9(?,n)6X12

## Homework Equations

## The Attempt at a Solution

a) A=46 + 4 - 43 = 7 Z = 21 + 2 - 20 = 3

b) A=12 + 1 - 9 = 4 Z = 6 + 0 - 4 = 2

I have NO idea if I'm doing this correct at all.. I'm really just confused about these types of problems, I need some help.. :[