1. What key change did Bohr make to the atomic model posited by Rutherford? a. The Bohr model included a small, dense nucleus at the center of the atom. b. The Bohr model included neutrons. c. The Bohr model included s, p, d, and f orbitals. d. The Bohr model had electrons orbiting the nucleus only in discrete, fixed energy levels. 2. Using the hypothetical electronegativity values given, which of the following bonds would be characterized as polar covalent? Carbon = 2.5 Phosphorus = 2.2 a. Boron - silicon b. Aluminum - boron Boron = 2.5 Silicon=3.5 Aluminum = 1.6 c. Phosphorus - carbon d. Phosphorus- Silicon

1. What key change did Bohr make to the atomic model posited by Rutherford? a. The Bohr model included a small, dense nucleus at the center of the atom. b. The Bohr model included neutrons. c. The Bohr model included s, p, d, and f orbitals. d. The Bohr model had electrons orbiting the nucleus only in discrete, fixed energy levels. 2. Using the hypothetical electronegativity values given, which of the following bonds would be characterized as polar covalent? Carbon = 2.5 Phosphorus = 2.2 a. Boron - silicon b. Aluminum - boron Boron = 2.5 Silicon=3.5 Aluminum = 1.6 c. Phosphorus - carbon d. Phosphorus- Silicon

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter3: Atoms And Elements

Section: Chapter Questions

Problem 7SC: Which statement is true of the quantum mechanical model, but not of the Bohr model? a. Electrons...

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