Question

what is step 1 of how to calculate average atomic mass? (1 point) multiply each decimal by its mass number. move the decimal two places to the left in each percent abundance. add up all the masses. round to two decimal places and label your answer as \amu\. subtract the mass number from each percent abundance.

Explanation:

To calculate average atomic mass, first convert percent abundances to decimals. Moving the decimal two places to the left in each percent - abundance is the first step in this conversion process.

Answer:

Move the decimal two places to the left in each percent abundance.