Question

the half - life of uranium is 2.5 x 10^5 years. what is this in standard form?

Explanation:

Step1: Recall the rule of scientific - to - standard conversion

When we have a number in scientific notation \(a\times10^{n}\), if \(n> 0\), we move the decimal point \(n\) places to the right.

Step2: Move the decimal point

For \(2.5\times10^{5}\), since \(n = 5\), we move the decimal point in \(2.5\) five places to the right. So \(2.5\times10^{5}=250000\).

Answer:

250000