Question 1: The sample contained the three isotopes 24Mg, 25Mg and 26Mg. The percent abundance of the isotopes and the mass are as follows 78.09% of 24Mg, 10.00% of 25Mg, and 11.01% of 26Mg. Calculate the relative atomic mass (A,) of magnesium, accurate to two decimal places. Three Isotopes: ^24Mg, ^25Mg, and ^26Mg. Stated Percent abundance: Question 2: Naturally occurring chlorine is 75.78% 35Cl which has an atomic mass of 34.969amu and 24.22%. 37Cl, which has an atomic mass of 36.966amu. Calculate the average atomic mass.

Q: IRevie Part B A certain element X has four isotopes. • 4.350% of X has a mass of 49.94605 amu.…

A: Atomic mass of an element can be defined as the mass of a one atom of given chemical element. It is…

Q: An element has three isotopes. X-72 (%= 54.239), X-73 (% = 10.945) and X-75. What is the fractional…

A: The percentage abundance of the isotopes of the element are:IsotopePercentage…

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A:

Q: Help me with understanding how to calulate mass for A1 and A2

A: Molarity = mole of solute(mol)volume of solution (L)Mass of compound = moles × molar mass1mL =…

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A: Mass spectrum was obtained from mass spectrometer. Mass to charge ratio of positively charged atoms…

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A: First we need to calculate mass of 1 mole of water using the given atomic mass units.  Then we can…

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A: Given What came first? protons neutral Atoms or nuclei? which came second?

Q: e equilibrium constant

A:

Q: The mass of a single nickel atom is 9.75x10-23 grams. How many nickel atoms would there be in 84.0…

A: Given ->  Mass of single nickel atom = 9.75 × 10-23 gram  Total mass of Ni = 84.0 milligram

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: Exercises In this section similar exercises are paired. Atemic Masses and the Mass Spectrometer 27)…

A: Given;

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A: Anything that occupy space and has mass is called matter which  is made up of atoms. Atoms are…

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A: Given: Element X undergoing a chemical reaction.

Q: Show how the mass spectrometer could be used to determine the relative atomic mass of an atom

A: Introduction: Mass spectrometer is a technique that is used to measure the mass to charge ratio of…

Q: How many carbon atoms are there in 11.4 kg sample of carbon

A:

Q: Say that on planet P3R-233, sulfur exists naturally as three isotopes. Calculate what the P3R-233…

A: The atomic mass of sulfur in the periodic table is weighted average of atomic masses of the isotopes…

Q: Convert between number of moles, mass, and number of atoms

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

Q: what is the mass element of calcium?

A: Mass of an element is represented by A in symbolic representation of element.

Q: What is the mass of a single He atom? (Please type answer no write by hend).

A: Helium(He) is a noble gas. We have to find the mass of a single He atom.

Q: How many electrons are in an electrically-neutral atom of aluminum (Al) with a mass number of 27?

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Q: in a sample of 47,500 silver atoms it was discovered that 35.8% of them had a mass of 107.35 amu and…

A: The objective of the question is to calculate the number of silver atoms

Q: nd the mass ratio of the following1)Cl207 2)SbF5 3)NH3

A: AS per  rule i can answer upto 3 compounds

Q: Calculate the atomic mass of naturally occurring chlorine if 77.62% of chlorine atoms are…

A: To calculate atomic mass of chlorine:

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A: We need to find the number of atoms of gold in a cube of gold that is 1.00 cm on each side. We know…

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A: The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of…

Q: How many Chlorine atoms are there in phosgene?

A: Phosgene is a colorless gas having molar mass equals to 98.92 g/mol. It is a suffocating gas.

Q: 5. Question: Magnesium has three naturally occuring isotopes. The masses and % abundances of the…

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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: 1. What is the mass of 4.50x1023 atoms of magnesium? grams 2. How many magnesium atoms are there in…

A: To solve this problem we have to calculate the mass of Mg and atoms of Mg

Q: Calculate the number of atoms there are in a sample of aluminum that with a mass of 81g

A: Given that:  Mass of Aluminium(Al) = 81g  Molar mass of Aluminium = 27g/mol So, moles of Al =…

Q: If element X has an atomic mass of 37.45 amu and is composed of x-38 and x-35, find the percent x-38…

A: Concept introduction: Mass of an element is the actual amount of substance is present in it and mass…

Q: Explain the difference between the mass number and theatomic mass of an element.

A: THE DIFFERENCE IS DISCUSSED BELOW :

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.