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whats the average atomic mass

12) Naturally occurring argon is composed of 0.3365% of 36Ar (atomic mass, 35.9675 u), 0.0632% of 38Ar (atomic mass, 37.9627 u),
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2. asked by Luke
3. 1,217 views
Element L has an average atomic mass of 54.2488 amu and is composed of two isotopes. The first has a mass of 55.2036 amu and
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2. asked by Star
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How would I solve this:The atomic mass of 6/3Li and 7/3Li are 6.0151 amu and 7.0160 amu, respectively. Calculate the natural
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2. asked by Amy~
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Antimony has two naturally occuring isotopes, 121 Sb and 123 b. 121Sb has an atomic mass of 120.9038 u, and 123 Sb has an atomic
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2. asked by mina
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Antimony has two naturally occuring isotopes, 121 Sb and 123 b. 121Sb has an atomic mass of 120.9038 u, and 123 Sb has an atomic
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2. asked by mina
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The element boron has three naturally occuring isotopes. One has the atomic mass 10.0129(54.4%), another 11.0093(12.75%). What
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2. asked by Anonymous
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The element copper, found in nature with an average atomic mass of 63.54u, consists of two isotopes, copper-63 of atomic mass
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2. asked by Laila
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Suppose the atomic mass unit had been defined as 1/10 th of the average mass of an atom of phosphorus. What would the atomic
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2. asked by Praphul
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Suppose the atomic mass unit had been defined as 1/10 the average mass of an atom of phosphorus .what would the atomic mass of
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2. asked by Praphul
3. 628 views
Which if the following has the greatest number of particles4g of lithium (atomic mass of li=7) 4g of chlorine gas (cl2) (atomic
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2. asked by Waqar
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