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Bromine has two natural occurring isotopes (Br-79 and Br-81) and has an atomic mass of 79.904 amu. The mass of Br-81 is 80.9163
1. 9 answers
2. asked by Davis
3. 12,582 views
Silicon has three naturally occurring isotopes: Si-28 with mass 27.9769 amu and a natural abundance of 92.21%, Si-29 with mass
1. 3 answers
2. asked by NEED HELP
3. 1,952 views
Magnesium has three naturally occurring isotopes: Mg-24 with mass 24.3050 amu and a natural abundance of 78.99 %, Mg-25 with
1. 5 answers
2. asked by Luis
3. 2,608 views
(b) If the natural abundance of Ag-107 is 51.84%, what is the natural abundance of Ag-109?48.16 % (c) If the mass of Ag-107 is
1. 0 answers
2. asked by lisa
3. 769 views
Silver has two naturally occurring isotopes (Ag-107 and Ag-109).(a) Use the periodic table to find the atomic mass of silver.
1. 1 answer
2. asked by NEED HELP
3. 2,237 views
The atomic mass of Eu is 151.96. There are only two naturally occurring isotopes of europium, 151Eu with a mass of 151.0 and
1. 1 answer
2. asked by Kumar
3. 8,124 views
Natural rubidium has an average mass of 85.4678 amu and is composed of isotopes85Rb (mass = 84.9117 amu) and 87Rb. The ratio of
1. 2 answers
2. asked by Gil
3. 2,747 views
Scientists believe t h e s i x t h great Mass extinction is being caused by. A human action B p o l l u t a n t s from natural p
1. 1 answer
2. 45 views
(b) If the natural abundance of Ag-107 is 51.84%, what is the natural abundance of Ag-109?% (c) If the mass of Ag-107 is
1. 3 answers
2. asked by Rebekah
3. 1,025 views
Calculate the atomic mass of silicon given the mass and natural occurrence of each isotope. Round your answer to the hundredths
1. 1 answer
2. 96 views

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