
Concept explainers
Interpretation:
Whether atoms of all elements are identical or not needs to be determined.
Concept introduction:
An element is composed of same types of atoms. An atom is the smallest unit of element. The neutron and protons present together in the nucleus and the number of electron is equal to the number of protons.

Answer to Problem 26A
All atoms of the same element identical, but due to the difference in the number of neutrons other isotopes are formed of the same element.
Explanation of Solution
An element is composed of identical atoms, with similar size, mass, other properties. An atom has protons, neutron and electron as the subatomic particle. The nucleus of an atom is consists by two main subatomic particles, protons and neutrons. The protons and electrons are electrically charged but neutrons are neutral.
The number of neutron is different for
The element is a made by the similar size and shape containing atoms. The difference is obtained, when the number of neutrons are changed in the nucleus of an atom.
Chapter 3 Solutions
World of Chemistry
- Draw the product of the reaction shown below. Ignore small byproducts that would evaporate please.arrow_forwardRelative Abundance 20- Problems 501 (b) The infrared spectrum has a medium-intensity peak at about 1650 cm. There is also a C-H out-of-plane bending peak near 880 cm. 100- 80- 56 41 69 M(84) LL 15 20 25 30 35 55 60 65 70 75 80 85 90 m/zarrow_forwardPolyethylene furanoate is a polymer made from plant-based sources; it is used for packaging. Identify the monomer(s) used in the production of this polymer using a condensation process.arrow_forward
- Phenol is the starting material for the synthesis of 2,3,4,5,6-pentachlorophenol, known al-ternatively as pentachlorophenol, or more simply as penta. At one time, penta was widely used as a wood preservative for decks, siding, and outdoor wood furniture. Draw the structural formula for pentachlorophenol and describe its synthesis from phenol.arrow_forward12 Mass Spectrometry (d) This unknown contains oxygen, but it does not show any significant infrared absorption peaks above 3000 cm . 59 100- BO 40 Relative Abundance M(102) - 15 20 25 30 35 40 45 50 5 60 65 70 75 80 85 90 95 100 105 mizarrow_forwardDraw a Haworth projection of a common cyclic form of this monosaccharide: H HO H HO H HO H H -OH CH2OH Click and drag to start drawing a structure. Х : Darrow_forward
- : Draw the structure of valylasparagine, a dipeptide made from valine and asparagine, as it would appear at physiological pH. Click and drag to start drawing a structure. P Darrow_forwardDraw the Haworth projection of α-L-mannose. You will find helpful information in the ALEKS Data resource. Click and drag to start drawing a structure. : ཊི Х Darrow_forwardDraw the structure of serine at pH 6.8. Click and drag to start drawing a structure. : d كarrow_forward
- Take a look at this molecule, and then answer the questions in the table below it. CH2OH H H H OH OH OH CH2OH H H H H OH H H OH H OH Is this a reducing sugar? yes α β ロ→ロ no ☑ yes Does this molecule contain a glycosidic bond? If you said this molecule does contain a glycosidic bond, write the symbol describing it. O no 0+0 If you said this molecule does contain a glycosidic bond, write the common names (including anomer and enantiomer labels) of the molecules that would be released if that bond were hydrolyzed. If there's more than one molecule, separate each name with a comma. ☐arrow_forwardAnswer the questions in the table below about this molecule: H₂N-CH₂ -C—NH–CH–C—NH–CH—COO- CH3 CH CH3 What kind of molecule is this? 0= CH2 C If you said the molecule is a peptide, write a description of it using 3-letter codes separated ☐ by dashes. polysaccharide peptide amino acid phospolipid none of the above Хarrow_forwardDraw a Haworth projection of a common cyclic form of this monosaccharide: CH₂OH C=O HO H H -OH H OH CH₂OH Click and drag to start drawing a structure. : ☐ Х S '☐arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





