Volume occupied by electrons Nucleus containing protons and neutrons- -10-4 Å- -15å–¬| -1-5 Å– A Figure 2.10 The structure of the atom.

Q: A mass of 145 g of a certain element is known to contain approximately 3.64 x1024 atoms. What is the…

A: Let the molecular weight of the element is M gm/mol.  Moles = weight/mol. wt.  Or, moles = 145/M  We…

Q: Nuclei differ in their stability, and some are so unstable thatthey undergo radioactive decay. The…

A: Hey since you have posted a question with multiple sub-parts, we will solve first three sub-parts…

Q: There are three primary subatomic particles that comprise an atom. (i) Name the three subatomic…

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Q: What is the radius (in cm) of a pure copper sphere that contains 1.14 * 1024 copper atoms? [The…

A: Given information:

Q: S Ina 3.7-gram sample, there are (A) 1.1 x 10 atoms of gold (B) 3.2 x 1025 atoms of gold (C) 4.4 x…

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Q: e terms atomic number, mass number, and atomic mass. Then, (ii) explain what isotopes are and (iii)…

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Q: When writing a complete atomic symbol, there are four numbers used – in the upper-left, upper-right,…

A: In this question, we have to answer that When writing a complete atomic symbol, there are four…

Q: Chromium reacts with oxygen to form threedifferent compounds, X,Yand Z. It was found that, for every…

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Q: An unknown element X has the following isotopes: ²⁵X (80.50% abundant, mass = 25.03 amu) and ²⁷X…

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Q: 85, 37X: (a) What is the atomic number? (c) How many protons are there? (e) What is the mass number?…

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Q: a) Which two of the following are isotopes of the same element:3116X, 3115X, 3216X? (b) What is the…

A: Two or more elements with identical atomic number but with different atomic mass are called…

Q: Bromine is naturally occurring as a mixture of two isotopes. One isotope has a mass of 79 amu and a…

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Q: What are (i) mass, (ii) charge and (iii) location in the atom of each of the following sub-atomic…

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Q: If the mass of lithium 3 Li is 7.01600 amu, mass H= 1.00783 amu, and mass 1 in= 1.00866 amu, the…

A: The isotope given is 73Li.

Q: (a) What percentage of the electrons originally in the cube was removed? % (b) By what percentage…

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Q: 1x 10 22 atoms of an element weight 1.15 gm. The atomic mass of the element is: 10 amu (b) 2.3 amu…

A: Number of atom= 3.011×1022Weight of element= 1.15 gram Mole is equal to number of atom divide by…

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: 8) You are at the LHC (Large Hadron Collider) and perform the following experiment. You collide a…

A: Initially, tritium particle was at rest and it collodes with the moving proton in its direction.…

Q: An atom has a diameter of 3.00 Å and the nucleus of that atom has a diameter of 7.50 × 10-5 Å.…

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Q: 5. The atomic mass of naturally-occurring chlorine is 35.45. From this you can deduce that (A)…

A: Given questions related to the concept of isotopes and kinetic energy of gas molecules.

Q: Tests on human subjects along the East Coast of the United States in 1965 and 1966, following the…

A: Radioactivity is a process by which unstable atomic nuclei lose energy by emitting radiation. This…

Q: J.J Thomson determined the charge-to-mass ratio of the electron to be 1.759*1011 coulombs/kg. The…

A: We have to determineethe charge on the electron, C, in coulombs. Given, e/m = 1.759*1011…

Q: Which total mass is the largest?

A: Mass of an electron is 0.000549 amu. Mass of a proton is 1.00728 amu. Mass of a neutron is 1.00867…

Q: Write the symbol for each of the following particles. (a) an atom with 13 protons and 13…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: What are the charge and mass of?:  a)  a singly ionized sodium atom, Na2+ (??????: 2311??, ????=…

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