Assertion: protactinium's life | /r/HasProperty | 5730 y
Facets:
Source sentences:
text: We also know that the half-life of 14C is 5730 y, and so once λt is known, we can use the equation [latex]\lambda=\frac{0.693}{t_{1/2}}\\[/latex] to find λ and then find t as requested.