Describe Thomson’s model of the atom. How might it account for the production of cathode rays?

Q: The diameter of a US penny is 19 mm. The diameter of a silver atom, by comparison, is only 2.88 Å.…

A: The diameter of one silver atom in the units of mm is calculated as follows:

Q: Mrs. Smith showed her class three elements and described their properties. Properties of Elements…

A: The data given is,

Q: 4, Cathode ray experiments permitted Thomson to calculate:  Group of answer choices a,…

A:

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: What THREE elements are rare-earth elements? calcium neodymium rhenium niobium samarium thallium…

A: In the above question the elements which are rare earth metal  among the option provided are…

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

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Q: According to Coulomb’s law, what happens to the potential energy of two oppositely charged particles…

A: As per Coulomb’s law:

Q: What element is found in period 4, group 4A? Use the atomic symbol to identify the element.

A: Given : Period of element is 4  Group of element is 4 A.

Q: Thomson was able to determine the mass/charge ratio of the electron but not its mass. How did…

A: Millikan oil drop experiment proved that electric charge is quantized. He believed that there was a…

Q: 7. Chlori - Nitrogen . Phosphorus 8. Argon . Boron 9. lodine 10. Heliu . Oxygen

A: In electron dot structure,  elements are written with the valence electrons. And valence electrons…

Q: The monatomic ions of Groups 1A(1) and 7A(17) are all singly charged. In what major way do they…

A: To find: The monatomic ions of Groups 1A(1) and 7A(17) are all singly charged. In what major way do…

Q: (Law of Conservation of Mass) A 0.455 g sample of magnesium is allowed to burn in 2.315 g of oxygen…

A: According to Law of conservation of mass total mass of reactants is equal with the total mass of…

Q: How has the understanding of the structure of the atom changed over time? Briefly describe the…

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Q: Provide a description of Rutherford’s gold foil experiment and the explanation for the results…

A: Rutherford's gold (Au) foil experiment:- Rutherford's experiment helps in understanding the atom in…

Q: Which of the following elements would be classified as a nonmetal? a.) silicon  b.) francium c.)…

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Q: 2.90 grams of phosphorus is burned in the presence of oxygen and forms 5.14 grams of a phosphorus…

A: We can just subtract the mass of the phosphorus from the mass of phosphorus oxide and get mass of…

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 radius of a tantalum atom is 142 pm. How many tantalum atoms would have to be laid side by side…

A: Given: Radius of tantalum atom = 142 pm And total distance given = 2.85 mm.

Q: When 0.220 g of iron (atomic weight %3D 55.85 g/mol) is burned, 0.341 g of iron oxide is obtained.…

A: Given, Mass of iron = 0.220 gm Mass of iron oxide = 0.341 gm Mass of oxygen = mass of iron oxide -…

Q: Give the chemical symbol, including superscript indicating mass number, for (a) the ion with 22…

A: The chemical symbol for any species is written as :   ZXA where Z is the atomic number and A is mass…

Q: Write any three differences between metals and non-metals on the basis of chemical properties?

A: Metals: Metals are the majority elements in the periodic table. They include transition metals,…

Q: What is Henri Becquerel contribution to the atomic theory? Explain in detail.

A: Answer - discovery of radioactivity in uranium by French physicist Henri Becquerel in 1896 forced…

Q: What is Coulomb’s law? Explain how the potential energy of two charged particles depends on the…

A:

Q: Describe the contributions of the alchemist to the science of chemistry.; Give at least 10 sentences

A: Alchemy was practiced since the ancient period in different places of the world like China, Greek,…

Q: 1. Determine the number of electrons necessary to equal a mass of 1.15 x 10 grams.

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Q: The radius of a rhodium atom is 134 pm. How many rhodium atoms would have to be laid side by side to…

A: We have to calculate the number of rhodium atoms.

Q: If a single gold atom has a diameter of 2.9×10−8 cm, how many atoms thick was Rutherford's foil? The…

A: Rutherford’s experiment led to the discovery of a positively charged nucleus with the help of a gold…

Q: Describe Thomson’s model of the atom. How might itaccount for the production of cathode rays?

A: The atomic model proposed by Thomson was the plum-pudding model. According to Thomson's atomic…

Q: Compare and contrast Thomson’s plum pudding atomic model withRutherford’s nuclear atomic model.

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Q: What basic properties of the electron were reported with its discovery?

A: The electron was discovered by an English physicist J.J.Thomson. J.J.Thomsom performed a cathode-ray…

Q: What chemical test(s) could you use to distinguish solid barium chloride from solid barium sulfate?

A: The barium Chloride is Soluble in water . The barium sulfate is not Soluble in water . By using the…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: The data given is,

Q: What are the names of the three subatomic particles? What are their approximate masses in atomic…

A: Subatomic particles are the parts of an atom. They constitute the atom. They play an important role…

Q: Sample of Substance X Change 1 Change 2 Change 3 Change 1 is: Change 2 is: Change 3 is: O impossible…

A: Physical change is defined as the one in which the form/state of the particle changes but their…

Q: hydrogen peroxide → water + oxygen List two physical / chemical properties for each compound

A:

Q: What is the formula of the species that has 24 electrons, 30 neutrons, and a 3+ charge?

A: Given data, Electrons 24, Neutrons 30 and charge is +3 The atomic number of Cobalt is 24

Q: What are the most common charges for magnesium and oxygen?  What would you expect the ratio between…

A: When electrons added to an atom it gets negative charge and when electrons are removed from an atom…

Q: The mass percentage of oxygen in 5.5 g M9SO.7H;0 equals : a. 57.7% 71.5% c. 63.5% d. 55.8%

A: Mass percent :- The mass (in grams) of an element present in 100 grams of the compound is defined as…

Q: 7. A 25.75 g sample of a nitrogen oxide was found to contain 6.68 g nitrogen and the rest oxygen.…

A: Problem 7 % Weight of an element in a compound = 100 x Weight of element/Weight of compound Weight…

Q: Which statement is TRUE? An atom of Carbon-14 contains 6 protons, 8 neutrons, 6 electrons in its…

A:

Q: Which statements are true? A. There are 11 elements represented in the periodic table by letters…

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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.