Question

The diameter of a hydrogen atom is 0.000000000106 m. How can this

number best be expressed in scientific notation?

Answer 1

divide by 10 instead of multiplying by 10.

Step-by-step explanation:

For example, the diameter of a hydrogen atom is approximately 0.000000000106 meters. To write small numbers, you divide by 10 instead of multiplying by 10. You can represent this in scientific notation using negative exponents. 0.000000000106 meters is 1.06 meters with the decimal point moved to the left 10 times.

Answer 2

1.06 * 10^-10 m

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.