The average atomic mass of a sample containing three lithium-6 atoms and two lithium-7 atoms is 6.41548 amu. Is the average atomic mass determined closer to lithium-6 or lithium-7? Explain.

Q: how many helium atoms are there in a helium blimp containing 536 kg of helium?

A: moles and number of atoms are related to each other by Avogadro's numberSo, one mole of every…

Q: What is the mass of 4.91×10214.91×1021 platinum atoms?

A: For  calculating the mass of substance , we have the governing equation  m=NA×Molecular weight ,…

Q: What is the mass number for an atom of mercury containing 80 protons and 118 neutrons?

A: Given, number of protons = 80 Number of neutrons = 118

Q: Botón is composed of two of two isotopes, one of mass 10.0129370 amu and one of mass 11.0093054 amu.…

A: Isotopes can be defined as members of family of an element that have the same atomic number but…

Q: A fictional element Ho has two stable isotopes and an average atomic mass of 18.357 amu. Use the…

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

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Q: What is the atomic mass of oxygen-17 (16.9991 amu) at 0.038%

A: Using the formula We can easily get the answer

Q: Differentiate between the mass number and the atomic number?

A: Mass number (A)- the number of protons(p) and neutrons(n) present in an atom of element called as…

Q: Suppose we redefined the atomic mass scale by arbitrarily assigning to the naturally occurring…

A: The atomic mass of a single atom is simply its total mass of the protons, neutrons, and electrons in…

Q: The atomic masses of nitrogen-14, titanium-48, and xenon-129 are 13.999234 amu, 47.935878 amu, and…

A: Given, the atomic masses of nitrogen-14, titanium-48, and xenon-129 are 13.999234 amu, 47.935878…

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: Can we tell the exact mass of a particular atom by looking at the periodic table

A: The periodic table is a table in which a total of 118 elements are placed on the basis of their…

Q: 5. Calculate the percent abundance of carbon-14 with a mass of 13.97 u and carbon- 12 with a mass of…

A: We have to calculate the % abundance of two isotopes.

Q: What is the difference between the atomic mass and the atomic weight?

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

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Q: Prior to 1961, the atomic mass standard was defined as 1/16 ofthe mass of ¹⁶O. Based on that…

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Q: Which element accounts for roughly 75% of the observed mass of the universe? Which four elements…

A: Hydrogen is the most abundant element in the universe which aaccounts for roughly 75% of the…

Q: Which of the following hypothetical isotopes have the same mass number? Note: the number before the…

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Q: Consider a sample of antimony collected from a different solar system. The sample contained 45.8…

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Q: What is the atomic mass of Lithium, if 7.49%  is Li-6 and 92.51% of Li-7?

A: Given, The natural abundance of Li-6 = 7.49 % The natural abundance of Li-7 = 92.51 %   Considering,…

Q: What is the difference between atomic number and atomic weight?

A: The atomic number corresponds to the number of protons present in an atom. It is represented by Z.…

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

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Q: Calculate the relative atomic mass

A: The relative atomic mass of an element is defined as an average value for the isotopes of the…

Q: - Rubidium has two naturally occurring isotopes, Rb-85 (rēlat and Rb-87 (relative mass 86.9092 amu).…

A: 35) Average atomic mass can be calculated by multiplying the % abundance of the isotope with…

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: What is the correct shorthand notation for an atom of

A: For an atom representation first, write its symbol and then in superscript on the left side of  the…

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: Enter your answer in the provided box. The atomic masses of the two stable isotopes of copper,…

A: Average atomic mass is represented by the equation:

Q: In a sample of nitrogen, there is 99.63% N-14 atoms and 0.37% of N-15 atoms. What is the atomic mass…

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Q: If a sample of gallium contains 1.56×104 atoms of gallium-69 and 1.02×104 atoms of gallium-71, what…

A: Given,1.56×104 atoms of gallium 69.1.02×104 atoms of gallium 71.

Q: How many grams of Xe are there in a sample of Xe that contains 8.97×1023 atoms?

A: First we have to determine the moles of xenon.

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: Can you show me how to draw the atomic structure of the carbon atom.  Draw its Chemical symbol and…

A: Atomic structure of atoms contains nucleus in the center and electrons outside the nucleus.

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: Enter your answer in the provided box. The atomic masses of the two stable isotopes of copper, Cu…

A: Calculation of average atomic mass of cu: Average atomic mass = percentage abundance x mass of cu…

Q: An isotope with atomic number 64 and mass number 158 is found to have a mass ratio relative to that…

A: Given An isotope has an atomic number of 64 and mass number of 158 It has a mass ratio of 13.16034…

Q: What is the mass number for an atom of osmium containing 76 protons and 112 neutrons?

A: The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of…

Q: How many neutrons are in the nucleus of the isotope at -210?

A: The mass number is comprised of neutrons and protons. Here, the number of protons will be obtained…

Q: An atom of a carbon-14 isotope would contain how many protons, neutrons, and electrons?

A: The correct answer is given below

Q: Calculate the mass of 1.23×10241.23×1024 helium atoms.

A: 1 mole of a substance contains Avogadro number of atoms.

Q: How do the terms atomic mass and atomic weight differ?

A: Atomic mass and atomic weight, both the terms are used for measurement of its quantity.

Q: A sample of aluminum foil contains 7.80×10237.80×1023 atoms. What is the mass of the foil?

A: Given that the number of atoms of aluminium is 7.80×1023 atoms. Number of moles of aluminium can be…

Q: The average atomic mass of Ga is 69.72. Naturally occurring Ga is composed of Ga-69, which has an…

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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: How to determine the mass number of an atom given the atomic mass (amu)?

A: Mass number is the sum of total number of protons and neutrons in an atomic nucleus.

Q: What is the mass (in grams) of one Ni-58

A: Given is number of atom = 1 Mole represent the quantity of fundamental particle.

Q: What is the difference between mass number and atomic number?

A: Atomic number:The atomic number of the element is the number of protons present in that element.Mass…

Q: Suppose a new element is discovered and it has two stable isotopes. One isotope has a mass of 70.387…

A: It is given that there are 2 isotopes of an element with percent abundance and atomic mass as…

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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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.