Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN: 9780618974122
Author: Andrei Straumanis
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 1CTQ
(E) What does the number (+Z) at the center of each atom in Figure 1.1 represent, and whatnumber would you expect at the center of a representation of a bromine atom (Br)?
Expert Solution & Answer
Interpretation Introduction
Interpretation:
The purpose of the representation of number (+Z) at the centre of each atom in given figure 1.1 should be determined along with the number which is present at the centre of a representation of bromine atom.
Concept Introduction:
In a planetary model of an atom, negative charged electrons are arranged around the positive charged electron in a series of shells which is like orbits.
The electrons present in the outermost energy level or shell is known as valence electrons. These electrons are available for bonding and outermost shell is known as valence shell.
Answer to Problem 1CTQ
+Z represents the nuclear charge of an atom which is equal to the number of protons or atomic number.
The representation of bromine atom:
Explanation of Solution
Given information:
In the given figure, the number Z represents the atomic number of an atom such as atomic number of carbon is 6. +Z represents the nuclear charge which is nothing but atomic number.
The total charge present on all the protons in the nucleus is known as nuclear charge. The value of nuclear charge is equal to atomic number.
The number of protons present in nucleus of an atom is known as atomic number.
Now, atomic number of bromine atom is equal to 35 which is equal to the number of protons present in bromine atom. In the valence shell representation, +35 is present at the centre of a representation of bromine atom.
Hence, the representation of bromine atom is shown as:
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Chapter 1 Solutions
Organic Chemistry: A Guided Inquiry
Ch. 1 - (E) What does the number (+Z) at the center of...Ch. 1 - Prob. 2CTQCh. 1 - Prob. 3CTQCh. 1 - Prob. 4CTQCh. 1 - Prob. 5CTQCh. 1 - Prob. 6CTQCh. 1 - Prob. 7CTQCh. 1 - You hear a student from a nearby group say that...Ch. 1 - Use VSEPR to explain why the HBH bond angle of BH3...Ch. 1 - Both the HCH and HCO bond angles of H2CO...
Ch. 1 - Prob. 11CTQCh. 1 - Consider the following flat drawing of methane...Ch. 1 - Use VSEPR to assign a value of (close to) 109.5,...Ch. 1 - A student draws the picture of ammonia (NH3) in...Ch. 1 - Prob. 15CTQCh. 1 - How many central atoms does the molecule H2NCH3...Ch. 1 - Indicate the bond angle and shape about each...Ch. 1 - Explain how there can be two kinds of bent:...Ch. 1 - A student makes the following statement: “The...Ch. 1 - A student who missed this class needs to know how...Ch. 1 - Prob. 1ECh. 1 - Prob. 2ECh. 1 - Consider the incomplete valence shell...Ch. 1 - How many valence electrons does a neutral a. K...Ch. 1 - Consider the molecules AlCl3 (aluminum chloride)...Ch. 1 - Draw an example of a bent molecule with a bond...Ch. 1 - Label each atom marked with an arrow with the...Ch. 1 - a model of each of the following molecules: a....
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