Naturally occurring magnesium has an atomic mass of 24.312 and consists of three isotopes. The major isotope is 24Mg24Mg, natural abundance 78.99%, relative atomic mass 23.98504. The next most abundant isotope is 26Mg, relative atomic mass 25.98259. The third isotope is 25Mg whose natural abundance is in the ratio of 0.9083 to that of 26Mg. Find the relative atomic mass of 25Mg.

Q: Boron has two naturally occurring isotopes: B-10 with an isotopic mass of 10.013 amu. B-11 with an…

A: Given, Mass of B-10 isotope = 10.013 amu Suppose, the percentage abundance of B-10 isotopes = y %…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by…

Q: There are only two naturally-occuring stable isotopes of boron. The mass and natural abundance of…

A: Number of naturally occuring stable isotopes of boron = 2Given isotope = 11BMass of given isotope =…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Answer: In this question we have to calculate the average atomic mass of Ru with the help of…

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: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by…

Q: An element has three naturally occurring isotopes with the following masses and abundances= Isotopic…

A: Given  Isotope  Mass            Fractional abundance    19.992    ( m1 )                    0.9048 (…

Q: A fictitious element Z has an average atomic mass of 223.22 u. Element Z has two naturally occuring…

A: Given : Atomic mass of element Z = 223.22 u Mass of Isotope 1 = 224.92 u And relative abundance of…

Q: An element X exists as two isotopes - 46X and 49X and weigh 45.95 amu and 48.95 amu, respectively.…

A: Given :-  Atomic wt.of 46X = 45.95 amu  Atomic wt.of 49X = 48.95 amu  Average atomic wt.of X = 46.66…

Q: Given the information below, calculate the abundance and mass for the missing isotope of platinum.…

A: With datas given From the total abundance of percentage , abundance percentage is found and with the…

Q: On another planet, the isotopes of titanium have the given natural abundances. Isotope Abundance…

A: The average atomic mass of three isotopes can be calculated using the following expression:

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: To determine the atomic mass of tin (Sn) for the periodic table used on planetesimal 98765 ALEKS, we…

Q: A Chemistry student at Agora is calculating the average atomic mass of Potassium using the following…

A: Given, Relative abundance of potassium  Isotope of K Relative abundance K-39 93.12 % K-41…

Q: An unknown element has two naturally occurring isotopes. Isotope 1 has a mass of 119.0 amu and an…

A: Average mass of an element is defined as the atomic mass of the element calculated by multiplying…

Q: Naturally occurring magnesium has an atomic mass of 24.312 and consists of three isotopes. The major…

A: The natural abundance of 25Mg is assumed to be x.  The natural abundance of 26Mg is assumed to be y.

Q: There are only two naturally-occuring stable isotopes of copper, the masses of which are listed in…

A: Given,Atomic mass of 63Cu (isotope I) = 62.930 amuAtomic mass of 65Cu (isotope II) = 64.928 amuLet…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A:

Q: an imaginary element has two isotopes. the first with an abundance of 46.59% has an atomic mass of…

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

Q: Copper has an isotope with an atomic mass of 62.93 and an abundance of 69.17%. A second isotope has…

A:

Q: A particular element exists in two stable isotopic forms. One isotope has a mass of 34.969 u (75.77%…

A: Given,Mass of one isotope (m1) = 34.969u.Abundance = 75.77% = 0.7577.Mass of second isotope (m2) =…

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

A:

Q: ) 107.868 amu is the average atomic mass for silver. The Ag-109 isotope (108.905 amu) is 48.16% of…

A:

Q: For the following questions determine the percent abundance of each isotope. The periodic table is…

A: Given Two isotope Oxygen - 16(smaller isotope)      Atomic mass = 16Oxygen - 18(larger isotope)…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Answer:We are given percentage abundance of two isotopes of Sn along with their atomic masses and we…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A:

Q: Be sure your answers have the correct number of significant digits. mass natural isotope Ox10 (amu)…

A: The average atomic mass of element is equal to the product of the masses of the isotope and its…

Q: An element has two naturally occurring isotopes. One has an abundance of 58.009% and an isotopic…

A: Isotopes of any element is the Pair of element with same atomic number but different mass number.

Q: Element X has 5 isotopes. One of the isotopes has a mass of 120.6 with an abundance of 8.4%. The…

A: Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by…

Q: A hypothetical (fake) element has 2 naturally occurring isotopes. Isotope #1 has a mass of 185.8410…

A:

Q: Magnesium has three stable isotopes. The most commonly occurring isotope, 24Mg, has an isotopic mass…

A: Average atomic mass of an atom can be calculated using the mass of their isotopes and their…

Q: On a mission to a newly discovered planet, an astronaut finds gallium abundances of 60.11 %% for…

A: The average atomic mass of an element can be calculated as shown below.

Q: Calculate the atomic mass for iron given the data for its natural isotopes. Fe-54: 53.940 amu 5.82%…

A:

Q: On a mission to a newly discovered planet, an astronaut finds gallium abundances of 60.11 % for 69Ga…

A: The mentioned atomic mass is the average atomic mass of gallium.  The equation for calculating the…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Answer :-  R44101u…

Q: An element has three naturally occurring isotopes with the following masses and natural abundances:…

A: In order to calculate relative atomic mass, simply multiply each isotopic mass by the percentage…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Given,                        Isotope                        Mass (amu)…

Q: On another planet, the isotopes of titanium have the given natural abundances. Abundance Mass (u)…

A: Formula is  Avg atomic mass = (%abundance×mass)1+(%abundance×mass)2 so do this all there Isotope of…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.