ilver is composed of two naturally occurring isotopes: Ag-107 (51.839%) and Ag-109. The ratio of the masses of the two isotopes is 1.0187. What is the mass of Ag-107?

Q: Silver is composed of two naturally occurring isotopes: Ag-107 (51.839%) and Ag-109. The ratio of…

A: First calculate the percent abundance of Ag-109.

Q: What are subatomic particles?

A: Sub atomic particle, also called elementary particle, any of various self contained units of matter…

Q: One way in which Earth’s evolution as a planet can be understood is by measuring the amounts of…

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Q: The atomic weight of Ga is 69.72 amu. There are only two naturally occurring isotopes of gallium: 69…

A: Given atomic weight of Ga is 69.72 amu

Q: a. 0 b. -2 35. Rubidium has two naturally occurring isotopes, Rb-85 (relative mass 84.9118 amu) with…

A: According to our guideline only one question can be solved. Kindly repost the unanswered question…

Q: In a sample of gallium there is 60.2% of gallium-69 (68.9 amu) atoms and 39.8% of gallium-71 (70.9…

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Q: One of the most harmful components of nuclear waste is a radioactive isotope of strontium,  90Sr38 ,…

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Q: How much does 4.28 x 10 21 atoms of Nickel weigh?

A: We know that, one mole of any substance contains 6.022 × 1023 atoms. We can determine the weight by…

Q: Calculate What is the difference expressed in kilograms between the mass ofa proton and the mass of…

A: Kilogram is the SI unit of mass. Mass of protons is 1.67×10-27Kg. Mass of electrons is…

Q: How many protons and neutrons are present in an atom of 39/19K?

A: Number of protons and neutrons in an atom of  39/19K

Q: What is the change in mass of 180 Ta when it is formed from protons, electrons and neutrons if the…

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Q: What is an isotope? How are isotopes denoted?

A: Molecular mass is the sum of protons and neutrons of an atom. In the modern periodic table, the…

Q: One atom of Se-77 is 6.410 times as heavy as an atom of C-12. What is the atomic mass of Se-77?

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Q: 234 Uranium has three common isotopes. If the abundance of *U is 0.01%, the abundance of U is 0.71%,…

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: Explain how isotopes are produced by changing the relative number of specific subatomic particles

A: Isotopes are atoms of same elements which have same atomic number but different mass number. In…

Q: What can you say about the number of neutrons in the stable isotopes of fluorine, sodium, aluminum,…

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Q: How many protons, neutrons and electrons are present in an atom of 40Ca and 119Sn ?

A: The atoms considered are 40Ca and 119Sn.

Q: Iodine has a mass number of 127 and 53 protons, how many neutrons does it have?

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Q: In an experiment, the reaction of 100.0 g of iodine produced 144.9 g of a compound formed from…

A: It is an example of law of conservation of mass

Q: 3. Which among the following represents a set of isotopes? Atomic nuclei containing: a) 20 protons…

A: Isotopes: Atoms having same atomic number (protons) but different atomic mass (n+p) are called…

Q: Naturally occurring chlorine is composed of two isotopes: 75.76 %% Cl-35Cl-35 (mass of 34.9688…

A: The naturally occurring isotopes of Cl are : Cl-35  and   Cl-37. The naturally occurring isotopes of…

Q: An element with 11 neutrons, 11 protons, and 11 electrons would have a mass number of _____?

A: The total number of neutrons and protons present in a nucleus is known as mass number.

Q: a. 0 35. Rubidium has two naturally occurring isotopes, Rb-85 (relative mass 84.9118 amu) with %…

A:

Q: There are three stable isotopes of silicon: 28Si, 29Si, and 30Si. Their masses and natural…

A: We have three isotopes of Si  having abundance and mass, we have to calculate the weighted average.…

Q: An atom containing 19 protons, 20 neutrons, and 19 electrons has a mass number of?

A: Given, Number of protons = 19 Number of electrons = 19 Number of neutrons = 20

Q: the isotope with 33 protons and 40 neutrons in its nucleus

A: Given : number of protons is 33. And number of neutrons = 40

Q: The atomic masses of the two stable isotopes of boron, boron-10 (19.78 percent) and boron-11 (80.22…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: Naturally occurring thallium consists of two stable isotopes, Tl-203 and TI-205 atomic masses =…

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Q: What is the difference between protons and neutrons?

A: We have to write the difference between protons and neutrons.

Q: Naturally occurring bromine is composed of two isotopes: 50.69 % Br-79 (mass of 78.9183 amu) and…

A: Given,Naturally occurring bromine is composed of two isotopes:50.69 % Br-79 (mass of 78.9183 amu)…

Q: A single atom of element Q has a mass of 1.09 x 10 -22 g. What is the name of the element Q?

A: Given : Mass of single atom of element = 1.09 X 10-22 g Assuming atomic mass of element is M.

Q: The atomic masses of 10B and 11B are 10.0129 amu and 11.0093 amu, respectively. Calculate the…

A: The atomic masses of B10 and B11 are 10.0129 and 11.0093 respectivelyLet their natural abundances be…

Q: Rubidium has two naturally occurring isotopes. The elemental mass of Rb is 85.4678 u. If 72.165% of…

A: Given: Rubidium has two naturally occurring isotopes. The elemental mass of Rb = 85.4678 u The…

Q: what is the mass of 7.15 x 10^22 aluminum atoms?

A: Given, Number of Aluminium atoms = 7.15×1022

Q: If a sample of silver contains 1.29×104 atoms of silver-107 and 1.20×104 atoms of silver-109, what…

A: The percentage of silver-109 in the sample can be calculated by using the formula Percentage of…

Q: Nuclei with the same number of neutrons but different mass numbers are called isotones. Write the…

A: A nuclear reaction involves the conversion of nucleus with the emission of certain nuclei or small…

Q: An element has three stable isotopes with masses of 27.977 amu, 28.976 amu, and 29.973 amu. The…

A: The average atomic mass of an element is calculated by considering the atomic mass of each isotope…

Q: Thallium has two stable isotopes, 203TIand 205TI. Knowing that the atomic weight of thallium is…

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Q: How many protons and neutrons are in the nucleus of Kr-80?

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Q: 19. Two particles X and Y have the following composition: X: 17 protons, 18 neutrons, 17 electrons…

A: The question is based on the concept of atomic structure. there are various subatomic particles like…

Q: Bromine has two naturally occurring isotopes. One of them, bromine-79, has a mass of 78.918 amu and…

A: Given: There are two naturally occurring isotopes of bromine. Mass of isotope 1 i.e. bromine 79 =…

Q: There are three isotopes of an element, X-28, X-29, and X-30, with relative abundances of 92.2297%,…

A: The mass number of Silicon = 30

Q: Naturally occurring bromine is composed of two isotopes: 50.69 % Br-79 (mass of 78.9183 amu) and…

A: Given:Isotopes of Bromine :  50.69 % Br-79 (mass of 78.9183 amu) and…

Q: The mole is defined as the amount of a substance containing the same number of particles as exactly…

A: An isotope is the chemical element that has same number of protons in the nucleus having same atomic…

Q: Calculate the mass in grams of 1 mole of neutrons given the following conversion factors: 1 n° =…

A: Consider the given information is as follows; 1 n0 = 1.008665 amu1 amu = 1.660538×10-24 g1 mole =…

Q: What would be the approximate mass of a particle that has 48 electrons, 46 neutrons and 52 protons?

A: No of electrons = 48 No of neutrons = 46 No of protons = 52

Q: How many protons and neutrons are in the element that has A= 40 and Z= 18?

A: For a neutral atom the atomic number of the element represent the no. of protons present in the…

Q: A atom X has two naturally occurring isotopes. One isotope has a natural abundance of 71.99% with a…

A: Mass of isotope can be calculated using formula: Atomic mass of X = (mass of isotope 1 × %isotope 1…

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.