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Calculate the average atomic mass of Sulfur if 95.00% of all sulfur atoms have a mass of 31.972 amu, 0.76% have a mass of 32.971amu and 4.22% have a mass of 33.967amu. The four isotopes of Lead are shown below, each with its percent by mass abundance and the composition of its nucleus.
Calculate the average atomic mass for each element based on the natural abundance of its isotopes. Find the average atomic mass for Li if 7.5% of Li atoms are 6Li with a mass of 6.0151223 amu and 92.5% are 7Li with a mass of 7.0160041 amu.
Calculate the average atomic mass of lithium, which occurs as two isotopes that have the following atomic masses and abundances in nature: 6.017 u, 7.30% and 7.018 u, 92.70%.
Calculate the average atomic masses. Show your work! Round all answers to two decimal places. 1. What is the atomic mass of hafnium if, out of every 100 atoms, 5 have a mass of 176, 19 have a mass of 177, 27 have a mass of 178, 14 have a mass of 179, and 35 have a mass of 180.0? 2. Iodine is 80% I-127, 17% I-126, and 3% I-128. Calculate the ...
Average Atomic Mass Worksheet: show all work. 1) Rubidium is a soft, silvery-white metal that has two common isotopes, 85Rb and 87Rb. If the abundance of 85Rb is 72.2% and the abundance of 87Rb is 27.8%, what is the average atomic mass of rubidium? 2) Uranium is used in nuclear reactors and is a rare element on earth. Uranium has three common ...
AVERAGE ATOMIC MASS CALCULATIONS N6 Target: I can calculate the weighted average for elements that have multiple isotopes in order to find the average atomic mass for the element.
The average atomic mass of a lead atom is 207.2 amu. Which isotope of lead is likely to be the most abundant? 2. What do all isotopes of an element have in common? 3. Explain why carbon-14 and nitrogen-14 are not considered isotopes. 4. Write the atomic symbol (symbol notation) for the two isotopes of uranium(U), whose atomic number is 92.
