Chemistry

What's the difference between relative and percentage abundance?

What's the difference between realtive and average atomic mass? Is there a difference?

1. 👍 0
2. 👎 0
3. 👁 99
1. Relative abundance is the frequency with which "something" exists compared to a different "something". For example, you might find 1 blue bird for every 5 black birds (but you might want to compare it with with some other species).
Percent abundance is the frequency compared to the whole. For example, 1 bluebird sighted in a day versus 100 birds total seen that day is (1/100)*100 = 1%.

I don't believe there is any difference between relative and average atomic mass. All atomic masses that you find in a table are relative to 6-C-12 as well as averages of the masses of each isotope (relative to 6-C-12). You CAN calculate the atomic mass of a single isotope and that is relative to 6-C-12 but with no other isotopes added in.

1. 👍 0
2. 👎 0
2. Thank you!

1. 👍 0
2. 👎 0
posted by Taylor

Similar Questions

1. Chemistry

Lithium has 2 isotopes. The relative atomic masses are 6.02 and 7.02. The average relative atomic mass of lithium is 6.94. What is the calculated relative abundance of the lighter isotope?

asked by Min on September 30, 2017
2. Chemistry

What is the difference between percent abundance and relative abundance?

asked by Chloe on October 13, 2008
3. Chemistry

Congratulations! You have discovered a new element called Bhauzium (Bz). The average atomic mass of Bz was found to be 348.72 amu and its atomic number is 123. a) if the atomic masses of three isotopes of Bhsuzium are 342.92 amu,

asked by Samantha on October 14, 2010
4. Math - Excel

Hi, I need to write an Excel formula and I am trying to double check my work. We are asked to find the difference and relative difference for this account. So the values are: \$10,000 \$10,700 \$11,400 \$12,100 \$12,800 \$13,500 etc.

asked by Carly on September 19, 2016
5. research in CriminalJustice

The five year survival rate for Caucasians for all forms of cancer increased from 39% in the 1960's to 57% now. Express the change in two ways: (1) as an absolute difference in terms of percentage and (2) as a relative difference

asked by Anonymous on March 20, 2012
6. chemistry

Copper used in electric wires comes in two flavors (isotopes): 63Cu and 65Cu. 63Cu has an atomic mass of 62.9298 amu and an abundance of 69.09%. The other isotope, 65Cu, has an abundance of 30.91%. The average atomic mass between

asked by andrea on October 31, 2016
7. chemistry

The element copper has naturally occuring isotopes with mass numbers of 63 and 65. The relative abundance atomic masses are 69.2% for mass=62.93 amu, and 30.8% for mass=64.93 amu. Calculate the average atomic mass of copper.

asked by henry on September 7, 2009
8. chemistry

What instrument is used to determine the mass and relative ambuandaces of small atomic particles? You may be thinking of the mass spectrometer. I'm not sure how small you are talking about but the mass spec is used to determine

asked by carter on September 26, 2006
9. Chemistry

An element has three stable isotopes. One has a mass number of 63 and an abundance of 50%. The second has a mass number of 65 and an abundance of 30%. The third has a mass number of 67 and an abundance of 20%. Calculate the

asked by Robert on September 24, 2016
10. Chemistry (percent abundance) *emergency*

If the average atomic mass of Br is 79.90 amu, what is the percent abundance of each of its isotopes? How would we figure out the isotopes first before we calculate the percent abundance??

asked by Ray on December 12, 2016

More Similar Questions