23) Which of the following correctly describes the Bohr model of atom?A) Electrons are embedded in a positively charged substrate.B) Electrons orbit nucleus in orbits that have set sizes and quantized energies.C) All matter is composed of very small indivisible particles, called atoms.D) A central nucleus is surrounded by electrons moving randomly in a probability cloud.24) According to periodic trends, which metal has the highest ionization energy?A) CsB) RbC) Li

Bohr's atomic model came into existence with the modification of Rutherford’s atomic model.…

Answered: 23) Which of the following correctly…

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter11: Atomic Theory :the Quantum Model Of The Atom

Section: Chapter Questions

Problem 29E

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Which statement is true of the quantum mechanical model, but not of the Bohr model? a. Electrons orbit the nucleus in simple circular orbits, just like planets orbit the Sun. b. The exact path that an electron follows within an atom cannot be specified. c. The electron is attracted to the nucleus of the atom.
Explain electron from a quantum mechanical perspective, including a discussion of atomic radii, probabilities, and orbitals.
According to the Bohr theory, which of the following would have the higher energy? a. An electron in an orbit close to the nucleus b. An electron in an orbit located farther from the nucleus
Why was Bohr's theory for the hydrogen atom initially accepted, and why was it ultimately discarded?
Determine whether each statement that follows is true or false: a Electron energies are quantized in excited states but not in the ground state. b Line spectra of the elements are experimental evidence of the quantization of electron energies. c Energy is released as an electron passes from ground state to an excited state. d The energy of an electron may be between two quantized energy levels. e The Bohr model explanation of line spectra is still thought to be correct. f The quantum mechanical model of the atom describes orbitals in which electrons travel around the nucleus. g Orbitals are regions in which there is a high probability of finding an electron. h All energy sublevels have the same number of orbitals. i The 3p orbitals of an atom are larger than its 2p orbitals but smaller than its 4p orbitals. j At a given sublevel, the maximum number of d electrons is 5. k The halogens are found in Group 7A/17 of the periodic table. l The dot structure of the alkaline earths is X, where X is the symbol of element in the family. m Stable ions formed by alkaline earth metals are isoelectronic with noble gas atoms. n Atomic numbers 23 and 45 both belong to transition elements. o Atomic number 52, 35, and 18 are arranged in order of increasing atomic size. p Atomic number 7, 16, and 35 are all nonmetals.
Without looking at data in the text, sketch a qualitative graph of the third ionization energy versus atomic number for the elements Na through Ar, and explain your graph.
How many electrons in an atom can have the following quantum designation? (a) 1s (b) 4d, m l =0(c) n=5,l=2
List the orbitals in order of increasing orbital energy up to and including 3p orbitals.
6.23 Describe how the Bohr model of the atom accounts for the spectrum of the hydrogen atom.
1. Which of the following is not a correct representation of an orbital? 3s 3p 3d 3f
Give electron configurations according to the Bohr model for each of the following elements. Try to not use Figure 3.11, but instead determine the configuration based on your knowledge of the number of electrons in each atom and the maximum number of electrons in each Bohr orbit. Indicate which of these elements you expect to be the most reactive and the least reactive. a. B b. Si c. Ca d. F e. Ar
How many sublevels are there in an atom with n=4?

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