J.J Thomson determined the charge-to-mass ratio of the electron to be 1.759*1011 coulombs/kg. The  mass of an electron is 9.107*10-31 kg. What must be the charge on the electron, C, in coulombs?

Q: Consider a rectangular piece of printer paper that is 8.5’’ x 11’’ (’’ denotes inches). In order to…

A: Given, The dimensions of the paper are =8.5’’ x 11’’ (inches) The mass of a proton is = 1.67262 x…

Q: An atom of calcium is represented by 12C.. How many neutrons are in the nucleus of this atom?…

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Q: Explain how J. J. Thomson’s determination of the charge-to-mass ratio of the electron led to the…

A: Thomson Atomic model introduced us to the world of subatomic particles. He discovered the first-ever…

Q: If you wanted to make an accurate scale model of the hydrogen atom and decided that the nucleus…

A: Answer :

Q: Thomson's experiments with a cathode ray tube demonstrated that protons are positively charges…

A: J J Thomson is one of the famous scientist in discovery of atomic structure and subatomic particles…

Q: In Millikan's experiment, the charge on each drop of oil was measured in coulombs. Imagine the same…

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Q: Lithiu 6.941 9.10 37 Rb 47 r tals ids Be Beryllium 9012 S B M Magne 83 131 R Rall Name 12.01 An…

A: We are given: density of mercury = 13.6 g/mL weight (mass) = 26.8 grams volume =?

Q: What is the mass number of an ion with 106 electrons, 159 neutrons, and a +1 charge? Express your…

A: Since it is an ion, the number of electrons is calculated with the expression given below in which…

Q: a) How many electrons are necessary to produce a charge of -1.2 C? Express your answer using two…

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Q: Two samples of carbon tetrachloride are decomposed into their constituent elements. One sample…

A: Given: Two samples of carbon tetrachloride are decomposed. One sample produces 38.9 g of carbon and…

Q: Choose one radioisotope and expalain its hazards and uses. b.) Give the A/Z and symbol-mass format…

A: Dear Subscriber! You have posted multiple questions. As per our policy, we have solved only first…

Q: (i) What is the mass of a neutron? (ii) What is the charge of a neutron?

A: Neutron is a subatomic particle as like proton. It is found in the nucleus along with proton and it…

Q: Suppose that atomic masses were based on the assignment of a mass of 12.000 g to 1 mol of carbon,…

A: SOLUTION: Step 1: One Dalton is defined as one-twelfth the mass of one mole of carbon-12 isotopes.…

Q: pretend that an atom has 25 protons, 20 electrons, and 30 neutrons. What is that charge?

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Q: Explain Millikan’s oil drop experiment and how it led to the measurement of the electron’s charge.…

A: A closed chamber whose sides are transparent is attached with two metal plates that are parallel to…

Q: The atomic weight of Cl is 35.45 amu. There are only two naturally occurring isotopes of chlorine:…

A: Given  The average atomic weight of Cl = 35.45 amu  The weight of 35Cl   = 35 amu  The weight of…

Q: in chemistry class, a group of students dtermined the mass-t-charge ratio for an electron to be 5.64…

A: Given: mass to charge ratio = 5.64×1012 kg/C Charge of electron = 1.605×10-19 C   Note:There is typo…

Q: Which pair of atoms constitutes a pair of isotopes of the same element? 29. 14 28 58 B) X 26 A) X…

A: Isotopes are defined as the elements having same atomic number but different mass number.  X1328…

Q: How many protons and how many neutrons are there in a nucleus of the most common isotope of (a)…

A: Atomic number: The total number of protons in the nucleus of an atom gives us the atomic number of…

Q: The radius of an atom of gold (Au) is about 1.35 Å. (a) Express this distance in nanometers (nm) and…

A: It is given that :Radius of gold atom = 1.35 Å

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

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Q: A student has determined the mass-to-charge ratio for an electron to be 5.64 * 10^-12 kg/C. iN…

A: Charge on a particle and mass of the particle are two physical quantities which are used for…

Q: The mass of a proton is 1.673 x 10-27 kg and the diameter of the nucleus of the H atom is 1.0 x 10°…

A: Given in the question, Mass of proton = 1.673 ×10-27kgDiameter of nucleus = 1.0 ×10-3 pm Radius of…

Q: The diameter of a U.S. dime is 17.9 mm, and the diameter of a silver atom is 2.88 A° . How many…

A: The diameter of a U.S. dime is 17.9 mm = 0.0179  meter  diameter of a silver atom is 2.88 A°  =…

Q: Imagine an alternate reality. The Thomson cathode ray experiments arrived at a charge to mass ratio,…

A: Here, we have to determine mass of electron.

Q: A 6.55 g sample of calcium sulfide was decomposed into its constituent elements, producing 3.64 g of…

A: According to the law of constant composition, for any particular chemical compound, all samples of…

Q: Which statement about subatomic particles are false? Protons and neutrons have charges of the same…

A: Proton, neutron and electrons are the subatomic particles present in an atom.

Q: The charge to mass ratio of an electron was determined from Thomson's cathode-ray tube experiment to…

A: From Thomson's cathode ray ride experiment we determine charge to mass ratio of an electron.…

Q: Copper has 2 stable isotopes, namely Cu-63 and Cu-65. The atomic masses of the said isotopes are…

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Q: Rubidium has two naturally occurring isotopes, from the following data calculate the value of X?…

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Q: A certain isotope has a charge of +3 and has 33 protons and 42 neutrons in the nucleus. How many…

A: Consider the given information is as follows; Number of protons = 33 Number of neutrons = 42…

Q: Which statement about the three fundamental particles is false? a. The charge of a proton is equal…

A: Given data:- three fundamental particles Electron, proton & Neutron.  Find false statements…

Q: Calculate the mass of a gold-197 atom using the information from question 9 and the masses of the…

A: The ratio of mass to the volume of the solution is known as density.

Q: 2) The spherical atomic nucleus of potassium has a radius of about 4 x 10-13 cm.; 6.02 × 1023 of…

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Q: Complete the following shorthand notations: ? (p, a) §Li 15 31P (a, ? ) 34S 16 242Cm (a, n) ? 96 25…

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Q: Part C In Millikan's experiment, the charge on each drop of oil was measured in coulombs. Imagine…

A: In Mulliken oil drop experiment , with the help of known electric field , he determined the charge…

Q: A 5.235.23 g sample of calcium sulfide was decomposed into its constituent elements, producing…

A: According to Law of Definite Proportions, compounds always occur in a certain fixed ratio. For…

Q: Although carbon-12 is now used as the standard for atomic weights, this has not always been the…

A: The atomic weights of H and O are 1.00794 g and 15.9994 g respectively. Weights of atoms are…

Q: If the density of indium is 7.31 g/cm², how many atoms are there in a indium piece of 30 dm wide, 5…

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Q: a) How many protons, electrons, and neutrons are in an 266 Sg atom? (atomic mass = 266) b) Atoms…

A: Elements are the species which consist of only one kind of atoms. In other words, species which…

Q: Currently, the atomic mass unit (amu) is based on being exactly one-twelfth the mass of a carbon-12…

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Q: 1) A 1.0-g sample of carbon dioxide ( CO2) is fully decomposed into its elements, yielding 0.273g of…

A: Since there are multiple questions, we answer only first question as per our policy, that is, no. 1.…

Q: In a chemistry class, a group of students determined the mass-to-charge ratio for an electron to be…

A: The charge on the particle and the mass of the particle is used to identify the subatomic particles…

Q: Naturally occurring magnesium has the following isotopicabundances:

A: The atomic mass of magnesium has to be calculated. Average atomic mass of the element is calculated…

Q: A hypothetical element exists as two isotopes: I = 68.00 amu and II = 71.00 amu. If the percent…

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Q: In the laboratory, 2.38g of copper combined with 1.19g of sulfur.  In a duplicate experiment, 4.26g…

A: The mass of the chemical chemical in a given state is equal to the sum of the individual masses 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.