Concept explainers
Interpretation:
The density of the recently discovered element
Concept introduction:
Density of the element is calculated by dividing the molar mass (
Answer to Problem 1E
The density of the recently discovered element
Explanation of Solution
From periodic table and from the given data table, element having
Thus, density of the element having atomic number
Want to see more full solutions like this?
Chapter 9 Solutions
General Chemistry: Principles and Modern Applications (11th Edition)
- What refinements had to be made in Daltons atomic theory to account for Gay-Lussacs results on the combining volumes of gases?arrow_forwardPredict and test the behavior of α particles fired at a “plum pudding” model atom.(a) Predict the paths taken by α particles that are fired at atoms with a Thomson’s plum pudding model structure.Explain why you expect the α particles to take these paths.(b) If α particles of higher energy than those in (a) are fired at plum pudding atoms, predict how their paths will differ from the lower-energy α particle paths. Explain your reasoning.(c) Now test your predictions from (a) and (b). Open the Rutherford Scattering simulation (http://openstaxcollege.org/l/16PhetScatter) and select the “Plum Pudding Atom” tab. Set “Alpha ParticlesEnergy” to “min,” and select “show traces.” Click on the gun to start firing α particles. Does this match your prediction from (a)? If not, explain why the actual path would be that shown in the simulation. Hit the pause button,or “Reset All.” Set “Alpha Particles Energy” to “max,” and start firing α particles. Does this match your prediction from (b)? If not,…arrow_forwardExplain the organization of an atom of carbon.arrow_forward
- Which of the following elements is the largest? a barium b titanium c rubidium d sodiumarrow_forward15. (a) b) Identify the element that is described by the following information. Refer to a periodic table if necessary. It is a group 14 (III A) metalloid in the 3rd period. It is a group 15 (VA) metalloid in the 5th period. It is the other metalloid in group 15 (VA). d) It is a halogen that exists in the liquid state at room temperature. 16. What is the relationship between electron arrangement and the organization of elements in the periodic table?arrow_forwardSelect all the elements whose elemental forms would exist as networks: Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neonarrow_forward
- 5 g of anhydrous strontium nitrate is added to a beaker and exposed to the air. After several hours the beaker and the contents are weighed. It was found that the mass increased by 1.70 g. Assume that the increase in mass is totally due to the absorption of water by the anhydrous compound. What is the percentage of water in the hydrated sample?arrow_forwardPlease help thanksarrow_forward(1) What is the valence electron configuration for the neon atom? (2) What is the valence electron configuration for the sulfur atom?arrow_forward
- Can you please answer 8 and 9arrow_forwardDuring World War II, physicists developed methods to separate the uranium-235 and -238 isotopes. One method involved converting the uranium metal to a gas, UF6, and then allowing the gas to diffuse through a porous barrier, with the lighter gas diffusing faster. What is the difference in the speeds of the two UF6 gas species at room temperature?arrow_forwardHi, can someone pls tell me if these answers are correct and help me find the answers to the ones I didn't know, thanks ?arrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
- Living By Chemistry: First Edition TextbookChemistryISBN:9781559539418Author:Angelica StacyPublisher:MAC HIGHERIntroductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning