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Concept explainers
(a)
Interpretation:
The fraction of volume in a helium atom occupied by the nucleus is to be determined.
Concept introduction:
Atom is a neutral particle. The presence of an equal number of protons and neutrons make atom a neutral species. Protons are positively charged particles that along with the neutral particles neutrons, make up the nucleus of an atom. The nucleus of an atom is densely packed and occupies a very small volume in the atom at the center. Electrons are negatively charged particles that revolve around the atomic nucleus due to the electrostatic force of attraction between the protons and the electrons.
The formula to calculate the volume of the spherical helium atom is,
The formula to calculate the volume of the spherical nucleus is,
The formula to calculate the fraction of the volume of atom occupied by the nucleus is,
(b)
Interpretation:
The fraction of the
Concept introduction:
Atom is a neutral particle. The presence of an equal number of protons and neutrons make atom a neutral species. Protons are positively charged particles that along with the neutral particles neutrons, make up the nucleus of an atom. The nucleus of an atom is densely packed and occupies a very small volume in the atom at the center. Electrons are negatively charged particles that revolve around the atomic nucleus due to the electrostatic force of attraction between the protons and the electrons.
The general formula to calculate the total mass of the electrons in a
The general formula to calculate the mass of the nucleus of an atom is,
The general formula to calculate the mass fraction of the nucleus of an atom is,
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Chapter 2 Solutions
Student Study Guide for Silberberg Chemistry: The Molecular Nature of Matter and Change
- solve pleasearrow_forwardPlease answer the question and provide a detailed drawing of the structure. If there will not be a new C – C bond, then the box under the drawing area will be checked. Will the following reaction make a molecule with a new C – C bond as its major product: Draw the major organic product or products, if the reaction will work. Be sure you use wedge and dash bonds if necessary, for example to distinguish between major products with different stereochemistry.arrow_forwardPlease do not use AI. AI cannot "see" the molecules properly, and it therefore gives the wrong answer while giving incorrect descriptions of the visual images we're looking at. All of these compounds would be produced (I think). In my book, I don't see any rules about yield in this case, like explaining that one product would be present in less yield for this reason or that reason. Please explain why some of these produce less yield than others.arrow_forward
- Please answer the question and provide detailed explanations.arrow_forwardAll of these compounds would be produced (I think). In my book, I don't see any rules about yield in this case, like explaining that one product would be present in less yield for this reason or that reason. Please explain why some of these produce less yield than others.arrow_forward5. Fill in the missing molecules in the following reaction pathway. TMSO Heat + CI then HF O₂N (1.0 equiv) AICI 3 OMearrow_forward
- e. O₂N NO2 1. excess H2, Pd/C 2. excess NaNO2, HCI 3. excess CuCNarrow_forwardHelp with a periodic table task.' Procedure Part 1: Customizing a Periodic Table Use a textbook or other valid source to determine which elements are metals, nonmetals, metalloids (called semimetals in some texts), alkali metals, alkaline earth metals, transition metals, halogens, and noble gases. Download and print a copy of the Periodic Table of Elements. Use colored pencils, colorful highlighters, or computer drawing tools to devise a schematic for designating each of the following on the periodic table: Group numbers Period number Labels for these groups: alkali metals, alkaline earth metals, transition metals, inner transition metals (lanthanides and actinides), other metals, metalloids (semimetals), other nonmetals, halogens, and noble gases Metals, nonmetals, and metalloids Note: Write the group and period numbers and color/highlight each element for categorization. Be sure to include a key for the schematic. Take a photo of the completed periodic table and upload the…arrow_forwardDon't used hand raiting and don't used Ai solutionarrow_forward
- Can you explain these two problems for mearrow_forward个 ^ Blackboard x Organic Chemistry II Lecture (m x Aktiv Learning App x → C app.aktiv.com ← Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. Problem 28 of 35 :OH H HH KO Select to Edit Arrows CH CH₂OK, CH CH2OH 5+ H :0: Donearrow_forwardCan you explain those two problems for me please.arrow_forward
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