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Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

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Section
BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 3, Problem 58E
Textbook Problem
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Suppose the absolute value of the charge of the electron was slightly greater than the charge of a proton. How would matter behave? What does this tell you about how small changes in the atomic realm affect the macroscopic realm?

Interpretation Introduction

Interpretation:

The statement, “if the charge of electron exceeds that of protons,” is to be explained.

Concept Introduction:

 Atom is composed of three subatomic particles, namely protons, electrons, and neutrons. Protons and neutrons are present in the nucleus, while electrons are present outside.

 The protons carry a one-unit positive charge, the electrons carry one-unit negative charge, while the neutrons are the uncharged species.

Explanation of Solution

The positive charge of an atom is present in the nucleus. This is equal to the total negative charge of the electrons. This equality of charges makes the atom electrically-neutral. This is responsible for the stability of the atom...

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Chapter 3 Solutions

Chemistry In Focus
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Ch. 3 - Based on their electron configurations, which of...Ch. 3 - Which pair of elements do you expect to be most...Ch. 3 - Which statement is true of the quantum mechanical...Ch. 3 - Why is it important to understand atoms?Ch. 3 - Describe an atom.Ch. 3 - What defines an element? How many naturally...Ch. 3 - List three different ways that chemical elements...Ch. 3 - Use the periodic table to write the name and the...Ch. 3 - Define each term: a. atomic number b. mass number...Ch. 3 - Write the mass and charge of the proton, neutron,...Ch. 3 - What is the periodic law?Ch. 3 - What was Mendeleevs largest contribution to the...Ch. 3 - Explain the Bohr model for the atom. How does the...Ch. 3 - Explain the quantum mechanical model for the atom....Ch. 3 - Give two examples of each: a. alkali metal b....Ch. 3 - Which elements exist as diatomic molecules?Ch. 3 - Explain the difference and similarity between...Ch. 3 - Determine the charge of each ion: a rubidium atom...Ch. 3 - Determine the charge of each of the following: a...Ch. 3 - Determine the number of protons and electrons in...Ch. 3 - Determine the number of protons and electrons in...Ch. 3 - Give the atomic number (Z) and the mass number (A)...Ch. 3 - Give the atomic number (Z) and mass number (A) for...Ch. 3 - The following isotopes have applications in...Ch. 3 - The following isotopes are important in nuclear...Ch. 3 - 14C is used in carbon dating of artifacts....Ch. 3 - 40K is used to measure the age of Earth. Determine...Ch. 3 - Determine the number of protons, neutrons, and...Ch. 3 - Determine the number of protons, neutrons, and...Ch. 3 - Give electron configurations according to the Bohr...Ch. 3 - Give electron configurations according to the Bohr...Ch. 3 - How many valence electrons are in each of the...Ch. 3 - How many valence electrons are in each element of...Ch. 3 - Draw electron configurations for each of the...Ch. 3 - Draw electron configurations for each of the...Ch. 3 - Which two of the following elements would you...Ch. 3 - Group the following elements into three similar...Ch. 3 - We have seen that the reactivity of an element is...Ch. 3 - What is the electron configuration of Mg2+? How...Ch. 3 - Classify each of the following elements as a...Ch. 3 - Classify each of the following as a metal, a...Ch. 3 - Calculate the atomic mass of neon (Ne), which is...Ch. 3 - An element has two naturally occurring isotopes....Ch. 3 - A fictitious element has two naturally occurring...Ch. 3 - Copper has two naturally occurring isotopes. Cu-63...Ch. 3 - How many moles of titanium are present in 124 g of...Ch. 3 - How many moles of carbon are there in a diamond...Ch. 3 - How many moles are there in each sample? a. 45 mg...Ch. 3 - How many moles are there in each sample? a. 55.0 g...Ch. 3 - What is the mass of each sample? a.1.8 mol S...Ch. 3 - What is the mass of each sample? a.2.75 mol Fe...Ch. 3 - Determine the number of atoms in each sample....Ch. 3 - Determine the number of atoms in each sample....Ch. 3 - How many Ag atoms are present in a piece of pure...Ch. 3 - How many platinum atoms are in a pure platinum...Ch. 3 - A pure gold necklace has a volume of 1.8cm3. How...Ch. 3 - A titanium bicycle component has a volume of...Ch. 3 - An iron sphere has a radius of 3.4 cm. How many...Ch. 3 - Calculate the number of atoms in the universe. The...Ch. 3 - The introduction to this chapter states that...Ch. 3 - Suppose the absolute value of the charge of the...Ch. 3 - When we refer to doughnuts or cookies, we often...Ch. 3 - Draw 101 squares on a piece of paper and time...Ch. 3 - Why does Avogadros number have such an odd value?...Ch. 3 - Can you think of anything that is not composed of...Ch. 3 - Explain the connection between the properties of...Ch. 3 - Read the interest box in this chapter entitled...Ch. 3 - Here are three fictitious elements and a molecular...Ch. 3 - Read the box entitled What if . . . Complexity Out...Ch. 3 - Gather any two of the following items, measure...

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