5. The four isotopes of lead are shown below, each with its percent by mass abundance and the composition of its nucleus. Using the

Question

The four isotopes of lead are presented below, along with their percent by mass abundance and the composition of their nucleus. Using the provided data, please calculate the approximate atomic mass of each isotope, assuming that each proton and neutron has a mass of 1.00 amu and that the mass of the electrons can be disregarded. Lastly, compute the average atomic mass of lead based on your calculations.

Anonymous · Accepted Answer

B. Relative abundance of each isotopeExplanation:Average atomic mass is the average mass of all the isotopes present depending on the relative abundance of each isotope. Example: Mass of isotope 1 = 203.973 amurelative abundance of isotope 1 = 0.014Mass of isotope 2 = 205.9745 amu relative abundance of isotope 2= 0.241Mass of isotope 3 = 206.9745 amurelative abundance of isotope 3 = 0.221Mass of isotope 4 = 207.9766 amurelative abundance of isotope 4 = 0.574Formula used for average atomic mass of an element :

Anonymous · Answer

The correct option is 2.Explanation: Average atomic mass of an element is the summation of the relative abundance of each isotope multiplied by its atomic mass.Mathematically,From the above relation, it is visible that the average atomic number of an element is dependent on relative abundance of each isotope.

Anonymous · Answer

c. isotope mass both varies in neutron numbers and is weighted by its relative abundance to give the average atomic mass. Explanation:Isotopes differ in the number of neutrons only so they have the same atomic number but different mass number. Mass number is the sum of the number of protons and neutrons.  Relative weighted mass of an element  = [(relative abundance of isotope 1 x molecular mass of isotope 1) + (relative abundance of isotope 1 x molecular mass of isotope 2)] / 100

Anonymous · Answer

For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu). By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.Explanation:

Nikita Cormier DDS · Answer

The average atomic mass can be calculated from the exact atomic mass of each isotope by multiplying the mass each isotope by its relative abundance and then finding the sum of the result.for example carbon has two major isotopes ;carbon 12 ,atomic mass  with relative abundance of 98.9% and carbon  13 , atomic mass of   with relative abundance 1.1%. The relative atomic mass is calculated below.RAM=11.868 + 0.143036905 RAM=12.011036905amu

Anonymous · Answer

B. relative abundance of each isotope   hope I helped you

Anonymous · Answer

I would say c . isotope mass both varies in neutron numbers and its weighted by its relative abundance to give the average atomic mass.

Anonymous · Answer

The factor in determining the average atomic mass of an element is: B or 2 relative abundance of each isotope because the by looking at how many protons , electrons and neutrons the most isotope is of the element has relative abundance.

Anonymous

5. The four isotopes of lead are shown below, each with its percent by mass abundance and the composition of its nucleus. Using the

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