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PLZZ HELP AND PLZ SHOW WORK 28) The three major isotope of calcium are calcium-40 (96.9%), calcium-42 (0.6%), and calcium-44 (2.5%).
Using this information, calculate the average atomic mass of calcium. Show all of your work below and box
in your answer.

Respuesta :

mrbean1rowan

Answer:

40.078 u

Step-by-step explanation:

Calcium-40 (96.9%)

calcium-42 (0.6%)

calcium-44 (2.5%)

change percent to decimal, multiply the abundance by the mass of the isotop and find the sum

(39.962*0.969) + (41.96*0.006) + (43.95*0.025)

= 40.073 approximately

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