Concept explainers
Interpretation: Meaning of the diagonal line on the graph of neutrons versus protons is to be explained.
Concept Introduction: An atom or an element exists in many isotopic forms. Some isotopes are found naturally on Earth while some exist due to human activity. Isotopes differ in the number of neutrons.
Answer to Problem 5E
The diagonal line plotted on the graph represents the isotopes that have an equal number of protons and neutrons. It helps to find out the stability of an isotope.
Explanation of Solution
Given information:
A graph of neutrons versus protons is plotted in which there is a diagonal line.
There are about 92 naturally occurring elements on the periodic table. Other elements have existed due to some sort of human activity. Elements are found in one or more isotopic forms. To study the stability of nuclei of isotopes, a graph of the number of neutrons versus the number of protons found in stable
The stability of the nucleus determines the stability of an isotope. An unstable nucleus will disintegrate. There should be a balance between the number of protons and neutrons in the nucleus. Large atoms need more neutrons to make a stable nucleus.
The diagonal line plotted on the graph represents the isotopes that have an equal number of protons and neutrons. Most of the points lie on or above the diagonal line as most elements have neutrons either equal to or greater than the number of protons.
Chapter U1 Solutions
Living By Chemistry: First Edition Textbook
Additional Science Textbook Solutions
Organic Chemistry (8th Edition)
Campbell Essential Biology with Physiology (5th Edition)
Introductory Chemistry (6th Edition)
Human Anatomy & Physiology (2nd Edition)
Human Biology: Concepts and Current Issues (8th Edition)
Campbell Essential Biology (7th Edition)
- An essential part of the experimental design process is to select appropriate dependent and independent variables. True Falsearrow_forward10.00 g of Compound X with molecular formula C₂Hg are burned in a constant-pressure calorimeter containing 40.00 kg of water at 25 °C. The temperature of the water is observed to rise by 2.604 °C. (You may assume all the heat released by the reaction is absorbed by the water, and none by the calorimeter itself.) Calculate the standard heat of formation of Compound X at 25 °C. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.arrow_forwardneed help not sure what am doing wrong step by step please answer is 971A During the lecture, we calculated the Debye length at physiological salt concentrations and temperature, i.e. at an ionic strength of 150 mM (i.e. 0.150 mol/l) and a temperature of T=310 K. We predicted that electrostatic interactions are effectively screened beyond distances of 8.1 Å in solutions with a physiological salt concentration. What is the Debye length in a sample of distilled water with an ionic strength of 10.0 µM (i.e. 1.00 * 10-5 mol/l)? Assume room temperature, i.e. T= 298 K, and provide your answer as a numerical expression with 3 significant figures in Å (1 Å = 10-10 m).arrow_forward
- Influence of salt concentrations on electrostatic interactions 2 Answer is 2.17A why not sure step by step please What is the Debye length in a concentrated salt solution with an ionic strength of 2.00 mol/l? Assume room temperature, i.e. T= 298 K, and provide your answer as a numerical expression with 3 significant figures in Å (1 Å = 10-10 m).arrow_forwardThe name of the following molecule is: Νarrow_forwardThe table shows the tensile stress-strain values obtained for various hypothetical metals. Based on this, indicate which is the most brittle and which is the most tough (or most resistant). Breaking strength Elastic modulus Material Yield strength Tensile strength Breaking strain A (MPa) 415 (MPa) (MPa) (GPa) 550 0.15 500 310 B 700 850 0.15 720 300 C Non-effluence fracture 650 350arrow_forward
- Please correct answer and don't used hand raitingarrow_forwardThe table shows the tensile stress-strain values obtained for various hypothetical metals. Based on this, indicate which material will be the most ductile and which the most brittle. Material Yield strength Tensile strength Breaking strain Breaking strength Elastic modulus (MPa) (MPa) (MPa) (GPa) A 310 340 0.23 265 210 B 100 120 0.40 105 150 с 415 550 0.15 500 310 D 700 850 0.14 720 210 E - Non-effluence fracture 650 350arrow_forwardPlease correct answer and don't used hand raitingarrow_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