Answer:
To write the number of cells in scientific notation, we need to express \( 51,000,000,000,000 \) in a form where there is one digit before the decimal point, followed by a decimal and then the remaining digits, and multiplied by a power of 10.
Given:
Number of cells = \( 51,000,000,000,000 \)
In scientific notation, we represent this number as:
\[ 5.1 \times 10^{13} \]
So, the number of cells in scientific notation is \( 5.1 \times 10^{13} \).