Introduction to General, Organic and Biochemistry
Introduction to General, Organic and Biochemistry
11th Edition
ISBN: 9781285869759
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Chapter 2, Problem 2.30P
Interpretation Introduction

(a)

Interpretation:

The number of neutrons and protons in the isotope of N22e should be determined.

Concept Introduction:

Isotopes have same number of protons but different number of neutrons. In an atom, mass number is equal to the sum of total number of protons and neutrons and atomic number is equal to number of protons.

Expert Solution
Check Mark

Answer to Problem 2.30P

The number of protons is equal to atomic number. In Periodic Table, the atomic number of neon is 10. Therefore, the isotope of N22e has 10 protons and 12 neutrons.

Explanation of Solution

Isotopes have same number of protons but different number of neutrons. Mass number is the sum of number of protons and neutrons in an atom. The number of protons is equal to atomic number therefore, each neon atom has 10 protons.

 A = np +  nn22 =  10 + nn nn=  22 - 10 nn=  12

Therefore, the isotope of N22e has 10 protons and 12 neutrons.

Interpretation Introduction

(b)

Interpretation:

The number of neutrons and protons in the isotope of P104d should be determined.

Concept Introduction:

Isotopes have same number of protons but different number of neutrons. In an atom, mass number is equal to the sum of total number of protons and neutrons and atomic number is equal to number of protons.

Expert Solution
Check Mark

Answer to Problem 2.30P

The number of protons is equal to atomic number. In Periodic Table, the atomic number of palladium is 46. Therefore, the isotope of P104d has 46 protons and 58 neutrons.

Explanation of Solution

Isotopes have same number of protons but different number of neutrons. Mass number is the sum of number of protons and neutrons in an atom. The number of protons is equal to atomic number therefore, each palladium atom has 46 protons.

A = np+ nn104  =  46 +  nn nn =  104 - 46 nn =  58

Therefore, the isotope of P104d has 46 protons and 58 neutrons.

Interpretation Introduction

(c)

Interpretation:

The number of neutrons and protons in the isotope of C35l should be determined.

Concept Introduction:

Isotopes have same number of protons but different number of neutrons. In an atom, mass number is equal to the sum of total number of protons and neutrons and atomic number is equal to number of protons.

Expert Solution
Check Mark

Answer to Problem 2.30P

The number of protons is equal to atomic number. In Periodic Table, the atomic number of chlorine is 17. Therefore, the isotope of C35l has 17 protons and 18 neutrons.

Explanation of Solution

Isotopes have same number of protons but different number of neutrons. Mass number is the sum of number of protons and neutrons in an atom. The number of protons is equal to atomic number therefore, each chlorine atom has 17 protons.

A =  np + nn35 =  17 +  nn nn =  35 - 17 nn  =  18

Therefore, the isotope of C35l has 17 protons and 18 neutrons.

Interpretation Introduction

(d)

Interpretation:

The number of neutrons and protons in the isotope of Tellurium-128 should be determined.

Concept Introduction:

Isotopes have same number of protons but different number of neutrons. In an atom, mass number is equal to the sum of total number of protons and neutrons and atomic number is equal to number of protons.

Expert Solution
Check Mark

Answer to Problem 2.30P

The number of protons is equal to atomic number. In Periodic Table, the atomic number of tellurium is 52. Therefore, the isotope of tellurium-128 has 52 protons and 76 neutrons.

Explanation of Solution

Isotopes have same number of protons but different number of neutrons. Mass number is the sum of number of protons and neutrons in an atom. The number of protons is equal to atomic number therefore, each tellurium atom has 52 protons.

A = np + nn128 =  52 + nnnn =  128 - 52nn =  76

Therefore, the isotope of tellurium-128 has 52 protons and 76 neutrons.

Interpretation Introduction

(e)

Interpretation:

The number of neutrons and protons in the isotope of Lithium-7 should be determined.

Concept Introduction:

Isotopes have same number of protons but different number of neutrons. In an atom, mass number is equal to the sum of total number of protons and neutrons and atomic number is equal to number of protons.

Expert Solution
Check Mark

Answer to Problem 2.30P

The number of protons is equal to atomic number. In Periodic Table, the atomic number of lithium is 3. Therefore, the isotope of lithium-7 has 3 protons and 4 neutrons.

Explanation of Solution

Isotopes have same number of protons but different number of neutrons. Mass number is the sum of number of protons and neutrons in an atom. The number of protons is equal to atomic number therefore, each lithium atom has 3 protons.

A = np + nn 7 =  3 + nnnn=  7 - 3nn=  4

Therefore, the isotope of lithium-7 has 3 protons and 4 neutrons.

Interpretation Introduction

(f)

Interpretation:

The number of neutrons and protons in the isotope of Uranium-238 should be determined.

Concept Introduction:

Isotopes have same number of protons but different number of neutrons. In an atom, mass number is equal to the sum of total number of protons and neutrons and atomic number is equal to number of protons.

Expert Solution
Check Mark

Answer to Problem 2.30P

The number of protons is equal to atomic number. In Periodic Table, the atomic number of uranium is 92. Therefore, the isotope of uranium-238 has 92 protons and 146 neutrons.

Explanation of Solution

Isotopes have same number of protons but different number of neutrons. Mass number is the sum of number of protons and neutrons in an atom. The number of protons is equal to atomic number therefore, each uranium atom has 92 protons.

A = np + nn238=  92 + nnnn=  238 - 92nn =  146

Therefore, the isotope of uranium-238 has 92 protons and 146 neutrons.

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Chapter 2 Solutions

Introduction to General, Organic and Biochemistry

Ch. 2 - Prob. 2.11PCh. 2 - 2-12 The elements game, Part 1. Name and give the...Ch. 2 - Prob. 2.13PCh. 2 - Prob. 2.14PCh. 2 - Prob. 2.15PCh. 2 - Prob. 2.16PCh. 2 - 2-17 How does Dalton’s atomic theory explain: (a)...Ch. 2 - Prob. 2.18PCh. 2 - Prob. 2.19PCh. 2 - 2-20 Calculate the percentage of hydrogen and...Ch. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - 2-23 It has been said, “The number of protons...Ch. 2 - Prob. 2.24PCh. 2 - Prob. 2.25PCh. 2 - 2-26 Given these mass numbers and number of...Ch. 2 - 2-27 If each atom in Problem 2-26 acquired two...Ch. 2 - Prob. 2.28PCh. 2 - 2-29 How many protons and how many neutrons does...Ch. 2 - Prob. 2.30PCh. 2 - 2-31 Tin-118 is one of the isotopes of tin. Name...Ch. 2 - Prob. 2.32PCh. 2 - Prob. 2.33PCh. 2 - 2-34 There are only two naturally occurring...Ch. 2 - 2-35 The two most abundant naturally occurring...Ch. 2 - Prob. 2.36PCh. 2 - Prob. 2.37PCh. 2 - Prob. 2.38PCh. 2 - Prob. 2.39PCh. 2 - Prob. 2.40PCh. 2 - Prob. 2.41PCh. 2 - Prob. 2.42PCh. 2 - 2-43 Which group(s) of the Periodic Table...Ch. 2 - 2-44 Which period(s) in the Periodic Table...Ch. 2 - Prob. 2.45PCh. 2 - Prob. 2.46PCh. 2 - 2-47 Which element in each pair is more metallic?...Ch. 2 - Prob. 2.48PCh. 2 - Prob. 2.49PCh. 2 - Prob. 2.50PCh. 2 - 2-51 What is the correlation between the group...Ch. 2 - Prob. 2.52PCh. 2 - Prob. 2.53PCh. 2 - Prob. 2.54PCh. 2 - Prob. 2.55PCh. 2 - Prob. 2.56PCh. 2 - Prob. 2.57PCh. 2 - Prob. 2.58PCh. 2 - 2-59 You are presented with a Lewis dot structure...Ch. 2 - Prob. 2.60PCh. 2 - Prob. 2.61PCh. 2 - Prob. 2.62PCh. 2 - Prob. 2.63PCh. 2 - 2-64 Consider the elements B, C, and N. Using only...Ch. 2 - Prob. 2.65PCh. 2 - Prob. 2.66PCh. 2 - 2-67 Account for the fact that the first...Ch. 2 - Prob. 2.68PCh. 2 - 2-69 (Chemical Connections 2A) Why does the body...Ch. 2 - Prob. 2.70PCh. 2 - Prob. 2.71PCh. 2 - Prob. 2.72PCh. 2 - 2-73 (Chemical Connections 2D) Copper is a soft...Ch. 2 - Prob. 2.74PCh. 2 - Prob. 2.75PCh. 2 - Prob. 2.76PCh. 2 - Prob. 2.77PCh. 2 - Prob. 2.78PCh. 2 - Prob. 2.79PCh. 2 - Prob. 2.80PCh. 2 - Prob. 2.81PCh. 2 - Prob. 2.82PCh. 2 - 2-83 The natural abundance of boron isotopes is as...Ch. 2 - Prob. 2.84PCh. 2 - 2-85 The mass of a proton is 1.67 × 10-24g. The...Ch. 2 - Prob. 2.86PCh. 2 - Prob. 2.87PCh. 2 - Prob. 2.88PCh. 2 - 2-89 Assume that a new element has been discovered...Ch. 2 - Prob. 2.90PCh. 2 - 2-91 These are the first two ionization energy for...Ch. 2 - Prob. 2.92PCh. 2 - Prob. 2.93PCh. 2 - 2-94 Using your knowledge of trends in element...Ch. 2 - Prob. 2.95PCh. 2 - Prob. 2.96PCh. 2 - 2-97 Explain why the Ca3+ ion is not found in...Ch. 2 - 2-98 Explain how the ionization energy of atoms...Ch. 2 - 2-99 A 7.12 g sample of magnesium is heated with...Ch. 2 - 2-100 A 0.100 g sample of magnesium, when combined...Ch. 2 - 2-101 Complete the following table: Symbol Atomic...Ch. 2 - 2-102 An element consists of 90.51% of an isotope...Ch. 2 - 2-103 The element silver has two naturally...Ch. 2 - 2-104 The average atomic weight of lithium is...Ch. 2 - Prob. 2.105PCh. 2 - Prob. 2.106P
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