### Home > GB8I > Chapter 9 Unit 3 > Lesson CC3: 9.2.1 > Problem9-66

9-66.

If one atom of carbon weighs $1.99 × 10^{−22}$ g and one atom of hydrogen weighs $1.67 × 10^{−27}$ g, which element weighs more? Explain your choice.

Look at the exponents on the $10$. Does a smaller exponent represent a larger or smaller number?