3 years ago

What is the missing number in the nuclear reaction shown below?

Physics

1 answer:

sergey [27]3 years ago

5 0

Answer:

$\boxed{299}$

Explanation:

In this reaction, Sum of Atomic Masses of Left side = Sum of Atomic Masses of right side

Let the atomic mass of Thorium be x

So,

233 = 4 + x

Subtracting 4 to both sides

x = 233-4

x = 229

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