The average atomic mass of Ga is 69.72. Naturally occurring Ga is composed of Ga-69, which has an atomic mass of 68.91, and of Ga-71, which has an atomic mass of 70.93. What percentage of naturally occurring Ga is Ga-71?

Q: A sample of element X has two naturally occurring isotopes. The isotope X-45 makes up 35.8% of the…

A: Isotopes are species having same atomic number but different mass number.  Given: The percentage of…

Q: Calculate the atomic mass of element "X", if it has 3 naturally occurring isotopes with the…

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Q: A sample of element Z has two naturally occurring isotopes.  The isotope Z-24 makes up 68.9% of the…

A: Interpretation: We have to calculate average atomic mass.

Q: How many isotopes of chlorine exist in nature?

A: The element chlorine has two isotopes, chlorine–35 and chlorine–37.

Q: 63Cu has an relative atomic mass of 63 amu, yet the atomic mass number on the periodic table…

A: Relative atomic mass is the average mass of an atom of a chemical element, expressed in atomic mass…

Q: Discuss the significance of assigning an atomic mass of exactly 12 amu to the carbon-12 isotope.

A: The significance of assigning an atomic mass of exactly 12 amu to the carbon-12 isotope has to be…

Q: 60% of the isotopes of bromine have an atomic mass of 79 amu while 40% of the isotopes of bromine…

A: Given Percentage abundance of bromine isotope

Q: Calculate the atomic weight of silver, which has two isotopes with the following properties:…

A: Atomic weight: It is the weight that is determined by taking the summation of the atomic mass of all…

Q: Fill in the blanks. Isotope 76AS3- has: Number of protons Number of neutrons Number of electrons…

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Q: Rhenium has two naturally occurring isotopes, Re-185 (mass = 184.953 amu) and Re-187 (186.9558 amu).…

A: The average atomic mass of the substance can be determined by the addition of the masses of each…

Q: A certain element consists of two stable isotopes. The first has an atomic mass of 106.9051 amu and…

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Q: Chromium has four naturally-occurring isotopes: 4.34% of 50Cr, with an atomic weight of 49.9460 amu;…

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Q: Calculate the atomic weight of copper, which has two isotopes with the following properties:…

A: Copper, in nature , exists in the form of two stable isotopes. They are Copper-63 and Copper-65. It…

Q: An element has two naturally occurring isotopes. One has an abundance of 37.4% and an isotopic mass…

A: Two naturally occurring isotopes.i. Abundance of 37.4% and an isotopic mass of 184.953 amuii.…

Q: A sample of the nonexistent element mythium consists of 25.59% of an isotope with mass number 580,…

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Q: Antimony Sb has two stable isotopes 121 Sb (at mass 120.904 amu) with a natural abundance of 57.36 %…

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Q: suppose an element consisted of two isotopes with the masses 89.9 amu and 91.1 amu. If 1.500 x 10^-3…

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Q: Naturally occurring silver consists of two isotopes: 107Ag (51.84%) with an isotopic mass of…

A: Given:The two isotopes of silver are 107Ag and 109AgIsotopes         Natural abundance…

Q: Calculate the atomic mass of element "X", if it has 2 naturally occurring isotopes with the…

A: Given that : Isotopic mass of X-39(m1) = 38.70 amu Abundance (A1) = 33.00% Isotopic mass of X-41(m2)…

Q: An element consists of two isotopes: The first isotope has an atomic mass of 86.905 AMU and a…

A: Given,The first isotope has an atomic mass of 86.905 AMU and a percent abundance of 51.83%. The…

Q: On earth, tin has 10 different stable isotopes. The heaviest,  124Sn makes up 5.80% of naturally…

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Q: Boron-10 and boron-11 are the naturally occurring isotopes of elemental boron. If boron has an…

A: Boron-10 and boron-11 are the naturally occurring isotopes of elemental boron. If boron has an…

Q: A certain element consists of two stable isotopes. The first has a mass of 138 amu and a percent…

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Q: Copper has two stable isotopes with the following atomic masses: copper-63 (atomic mass = 62.9296…

A: Given: average atomic mass of copper = 63.546 amu atomic mass of copper-63 = 62.9296 amu atomic mass…

Q: A certain element consists of two stable isotopes. The first has a mass of 138 amu and a percent…

A: Given  Atomic mass of first isotope ( M1 )       = 138 amu  percentage natural abundance ( P1)     =…

Q: An element has two naturally occurring isotopes. One has an abundance of 51.839% and an isotopic…

A:

Q: A certain element consists of two stable isotopes.The first has a mass of 68.9 amu and a percent…

A: The objective of the question is to calculate the atomic weight of an element that has two stable…

Q: the atom bromine79 has an isoptopic mass of 78.91 while bromine 81 has an isotopic mass of 80.91.…

A: Given, Atomic Mass of B79r = 78.91 amu Atomic Mass of B81r = 80.91 amu

Q: The atomic masses of the stable isotopes of boron, 105B (19.78%) and 115B (80.22%), are 10.0129 and…

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Q: A hypothetical element has two stable isotopes: one isotope has a mass of 106.9051 amu with an…

A: We have to calculate the average atomic mass of element.

Q: A new element Z has been discovered.  There are 2 isotopes of this element: Z-121 which has an…

A:

Q: Copper has two naturally occurring isotopes: 69.17% of Cu-63 (mass 62.93 amu) and 30.83% of Cu-65…

A: Average atomic mass of Cu = [(% abundance of Cu-63 x Mass of Cu-63) +(% abundance of Cu-65 x Mass of…