| Quiz | Abundance |
|---|---|
| Name | |
| Result | FAILED |
| Score | 3 / 7 (42.9%) |
| Passing score | 5.6 |
| Quiz took | 2 min 02 sec |
| Quiz finished at | 2022-04-08 11:39:28 |
Chlorine-35 has an abundance of 75% and chlorine-37 has an abundance of 25%. Calculate the relative atomic mass of chlorine. Give your answer to 1 decimal place.
Copper-63 has an abundance of 69% and copper-65 has an abundance of 31%. Calculate the relative atomic mass of copper.
Thallium consists of 29.5% Tl-203 and 70.5% Tl-205. What is the relative atomic mass of thallium?
Oxygen-16 has a relative abundance of 99.762%, oxygen-17 has a relative abundance of 0.038% and oxygen-18 has a relative abundance of 0.200%. Calculate the relative atomic mass of oxygen.
Uranium-238 has a relative abundance of 99.27%, uranium-235 has a relative abundance of 0.72% and uranium-234 has a relative abundance of 0.01%. Calculate the relative atomic mass of uranium.
The element lead consists of Pb-206, Pb-207 and Pb-208; which have relative abundances of 19.4%, 40.3% and 40.3% respectively. Use this data to calculate the relative atomic mass of lead.
The element rhenium consists of two isotopes 185-Re and 187-Re, in the atomic ratio of 2:3. Calculate the relative atomic mass of rhenium.