The half-life of radium is 1550 years. Calculate its disintegration constant `(lamda)`

Explanation

To calculate the disintegration constant (λ) for radium given its half-life (T_half), we can follow these steps:

### Step 1: Write down the relationship between half-life and disintegration constant
The relationship between the half-life (T_half) and the disintegration constant (λ) is given by the formula:
\[ T_{half} = \frac{\ln 2}{\lambda} \]

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