Question

the length of a bacterial cell is 2.2×10⁻⁶ m. express the length of the cell in standard form. the length of the cell is m.

Explanation:

Step1: Recall negative - exponent rule

For a number in scientific notation \(a\times10^{-n}\) (\(1\leqslant a<10\), \(n\) is a positive integer), we move the decimal point \(n\) places to the left.

Step2: Move the decimal point

Given \(2.2\times 10^{-6}\), we move the decimal point 6 places to the left. So \(2.2\times 10^{-6}=0.0000022\).

Answer:

\(0.0000022\)