(a)
Interpretation:
Number of neutrons and protons present in
Concept Introduction:
Each and every element present in the Periodic table has a unique name. Some of the elements are named considering their
Chemical names are represented as atomic symbols. In the symbols, the mass number and atomic number are shown. The complete
Atomic number is the total number of protons present in the atom of an element. Mass number is the total number of protons and neutrons present in nucleus of an atom.
(b)
Interpretation:
Number of neutrons and protons present in
Concept Introduction:
Refer part (a).
(c)
Interpretation:
Number of neutrons and protons present in
Concept Introduction:
Refer part (a).
Trending nowThis is a popular solution!
Chapter 2 Solutions
Chemistry: Principles and Practice
- 2-73 (Chemical Connections 2D) Copper is a soft metal. how can it be made harder?arrow_forwardA sample of metallic element X, weighing 3.177 g, combines with 0.6015 L of O2 gas (at normal pressure and 20.0C) to form the metal oxide with the formula XO. If the density of O2 gas under these conditions is 1.330 g/L, what is the mass of this oxygen? The atomic weight of oxygen is 15.999 amu. What is the atomic weight of X? What is the identity of X?arrow_forwardWhat are the live most abundant elements (by mass) in the earth’s crust, oceans, and atmosphere?arrow_forward
- 2.75 Chlorine has only two isotopes, one with mass 35 and the other with mass 37. One is present at roughly 75% abundance, and the atomic weight of chlorine on a periodic table is 35.45. Which must be the correct mass spectrum for chlorine?arrow_forward2-69 (Chemical Connections 2A) Why does the body need sulfur, calcium, and iron?arrow_forward2-99 A 7.12 g sample of magnesium is heated with 1.80 g of bromine. All the bromine is used up, and 2.07 g of magnesium bromide is produced. What mass of magnesium remains unreacted?arrow_forward
- During nuclear decay a 238U atom can break apart into a helium-4 atom and one other atom. Assuming that no subatomic particles are destroyed during this decay process, what is the other element produced?arrow_forwardA sample of metallic element X, weighing 4.315 g, combines with 0.4810 L of Cl2 gas (at normal pressure and 20.0C) to form the metal chloride with the formula XCl. If the density of Cl2 gas under these conditions is 2.948 g/L, what is the mass of the chlorine? The atomic weight of chlorine is 35.45 amu. What is the atomic weight of X? What is the identity of X?arrow_forwardThe mass spectrum of phosphoryl chloride. POF3, is illustrated here. (a) Identify the cation fragment at a m/Z ratio of 85. (b) Identify the cation fragment at a m/Z ratio of 69. (c) Which two peaks in the mass spectrum provide evidence that the oxygen atom is connected to the phosphorus atom and is not connected to any of the three fluorine atoms?arrow_forward
- Balance the following equations by filling in the blanks. (a) 92235U+01n54137_+201n+_ (b) 90232Th+612__01n+96240Cm (c) 24He+4296Mo43100_+_ (d) _+12H84210_+01narrow_forwardGive the complete symbol (XZA), including atomic number and mass number, of (a) a nickel atom with 31 neutrons, and (b) a tungsten atom with 110 neutrons.arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningGeneral 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 Learning