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) Li25) Which nonradioactive group I metal would be the most reactive in water and why?A) Cesium would be the most reactive group I metal in water because it's one valence electron is the closestto the nucleus compared to the other metals.B) Cesium would be the most reactive group I metal in water because it's one valence electron is the farthestfrom the nucleus compared to the other metals.C) Cesium would be the most reactive group I metal in water because it has only one valence electron.26) Which of the following elements have a tendency to gain electrons?А) N, O, AIB) CI, O, FC) CI, F, Ga27) Which of the following is covalent compound?A) Na,0В) СОC) K,PO428) Which list of elements contains ONLY nonmetals?A) phosphorus, nitrogen, oxygenB) helium, carbon, goldC) sodium, fluorine, copper29) Which one of these compounds is an ionic compound?B) NO2A) C6H1206C) Li,OD) CH3OHE) P401030) How uranium is classified as an element?A) Inner transition metalB) Transition metalC) Main group element

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.

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.

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 92E: Determine whether each statement that follows is true or false: a Electron energies are quantized in...

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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.
How are the Bohr model and the quantum mechanical model of the hydrogen atom similar? How are they different?
Why was Bohr's theory for the hydrogen atom initially accepted, and why was it ultimately discarded?
How are the Bohr model and the Rutherford model of the atom similar? How are they different?
6.23 Describe how the Bohr model of the atom accounts for the spectrum of the hydrogen atom.
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.
The Bohr model works for only one electron species. Why do we discuss it in this text (what's good about it)?
Draw electron configurations for each of the following elements according to the Bohr model. Indicate which electrons are valence electrons. a. Mg b. S c. He d. K
According to Bohr, the electron in the hydrogen atom moved around the nucleus in circular paths called .
Explain electron from a quantum mechanical perspective, including a discussion of atomic radii, probabilities, and orbitals.
The hydrogen atom contains only one electron, but there are several lines in its line emission spectrum (Figure 5.8). How does the Bohr theory explain this?
6.106 When Bohr devised his model for the atom, was he using deductive or inductive reasoning? Explain your answer.