Question 2 Briefly cite the main differences between ionic, covalent and metallic bonding. Question 3 Do non-crystalline materials display the phenomenon of allotropy (or polymorphism)? Why or why not? Question 4 In terms of defining the positions of the electrons, what is the difference between the Bohr model and the wave mechanical model of the atom?

Question 2 Briefly cite the main differences between ionic, covalent and metallic bonding. Question 3 Do non-crystalline materials display the phenomenon of allotropy (or polymorphism)? Why or why not? Question 4 In terms of defining the positions of the electrons, what is the difference between the Bohr model and the wave mechanical model of the atom?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter5: Electron Configurations And The Periodic Table

Section: Chapter Questions

Problem 95QRT: Determine the lattice energy for LiCl(s) given these data: Sublimation enthalpy of Li, 161 kJ/mol;...

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Determine the lattice energy for LiCl(s) given these data: Sublimation enthalpy of Li, 161 kJ/mol; IE, for Li, 520 kJ/mol; BE of Cl2(g), 242 kJ/mol; electron affinity of Cl, 349 kJ/mol; formation enthalpy of LiCl(s), 408.7 kJ/mol.
Illustrate the sharing of electrons of each covalent compound using the Bohr Model. Apply the octet rule if possible. (A) A molecule composed of two chlorine atoms. (b) A molecule composed of a hydrogen atom and a bromine atom. (c) A molecule composed of 2 hydrogen atoms. (d) A molecule composed of a hydrogen atom and a chlorine atom.
Q1. This question is about atomic structure. (a) Write the full electron configuration for each of the following species. CH Fe2+ (b) Write an equation, including state symbols, to represent the process that occurs when the third ionisation energy of manganese is measured. (c) State which of the elements magnesium and aluminium has the lower first ionisation energy Explain your answer. (d) A sample of nickel was analysed in a time of flight (TOF) mass spectrometer. The sample was ionised by electron impact ionisation. The spectrum produced showed three peaks with abundances as set out in the table. m/z Abundance /% 58 61.0 60 29.1 61 9.9 Give the symbol, including mass number, of the ion that would reach the detector first in the sample. Calculate the relative atomic mass of the nickel in the sample. Give your answer to one decimal place. Page 2 of 12 Symbol of ion Relative atomic mass
(d) Complete the diagram to show the electron arrangement in a carbon dioxide molecule. Show the outer shell electrons only. C KS VEN
Question 15: lonic compounds are formed when a metal reacts with a nonmetal. Which two elements combine to form this kind of compound? A Answer: Question 16: A B Element D R S T Q and T 1 loses Electronic structure loses gains gains 2.8.8.1 Potassium and bromine chemically combine to form the compound potassium bromide. During formation, each bromine atom.....1..... one electron which is completely .....2..... from the outer shell of the potassium atom. The .....3..... force of attraction is formed from the attraction between the opposite charges on each ion. What words correctly fill gaps 1, 2 and 3? B Q and R 2.8.7 2.8.4 2.8.8 2 C R and S shared transferred shared transferred DS and T 3 electrical intermolecular electrostatic electrostatic
Carbon (C) reacts with several different nonmetallic elements. These non-metallic elements tend to share one electron. What is the most likely chemical formula between carbon and these nonmetallic elements, represented by X?
Discussing this chapter, a classmate says, “Since elementsthat form cations are metals and elements that form anionsare nonmetals, elements that do not form ions are metalloids.”Do you agree or disagree?
A monatomic ion with a charge of -2 has an electronic configuration of 1s²2s²2p 3s²3p6. This ion is a(n) [ What is the chemical symbol of the noble gas this ion is isoelectronic with? What is the formula of the ion?
A monatomic ion with a charge of +2 has an electronic configuration of 1s22s22p63s23p64s23d104p65s24d105p6.This ion is a(n) _______cation anion.What is the chemical symbol of the noble gas this ion is isoelectronic with? .What is the formula of the ion? .
1. How does the electron theory explain (a) why a rubber rod becomes negatively charged when rubbed with fur; (b) why a glass rod becomes positively charged when rubbed with silk?
If weadd one electron to form the He atom, would your answer topart (a) change?
62. Draw the electron dot formula for each of the following elements. (a) He (c) Se (e) Cs (b) Pb (d) Ne (f) Ga (h) Br (g) Sb