Chemistry
Chemistry
4th Edition
ISBN: 9780393919370
Author: Thomas R. Gilbert
Publisher: NORTON
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Chapter 2, Problem 2.30QP

(a)

Interpretation Introduction

Interpretation: The number of neutrons, protons and electrons to be calculated in a given atoms.

Concept introduction: The center of the atom is known as nucleus which consists of neutrons and protons. The electron revolves around the nucleus in different orbits.

To determine: The number of neutrons, protons and electrons in a given atom.

(a)

Expert Solution
Check Mark

Answer to Problem 2.30QP

Solution

The number of neutrons, number of protons and number of electrons for the given atom are 6_ , 5_ and 5_ , respectively.

Explanation of Solution

Explanation

The atomic number of 11B is 5 and atomic mass is 11 .

Calculate the number of neutrons by formula,

Numberofneutrons=atomicmassatomicnumber

Substitute value of atomic number and atomic mass in above formula,

NumberofNeutrons=115=6

Therefore, the number of neutrons are 6_ .

The number of proton is equal to the atomic number of element. Therefore, the number of protons in 11B are 5_ .

The number of electrons is equal to atomic number or number of protons. Therefore, the number of electrons in 11B are 5_ .

(b)

Interpretation Introduction

To determine: The number of neutrons, protons and electrons in a given atom.

(b)

Expert Solution
Check Mark

Answer to Problem 2.30QP

Solution

The number of neutrons, number of protons and number of electrons for the given atom are 10_ , 9_ and 9_ , respectively.

Explanation of Solution

Explanation

The atomic number of 19F is 9 and atomic mass is 19 .

Calculate the number of neutrons by formula,

Numberofneutrons=atomicmassatomicnumber

Substitute value of atomic number and atomic mass in above formula,

NumberofNeutrons=199=10

Therefore, the number of neutrons are 10_ .

The number of proton is equal to the atomic number of element. Therefore, the number of protons in 19F are 9_ .

The number of electrons is equal to atomic number or number of protons. Therefore, the number of electrons in 19F are 9_ .

(c)

Interpretation Introduction

To determine: The number of neutrons, protons and electrons in a given atom.

(c)

Expert Solution
Check Mark

Answer to Problem 2.30QP

Solution

The number of neutrons, number of protons and number of electrons for the given atom are 78_ , 53_ and 53_ , respectively.

Explanation of Solution

Explanation

The atomic number of 131I is 53 and atomic mass is 131 .

Calculate the number of neutrons by formula,

Numberofneutrons=atomicmassatomicnumber

Substitute value of atomic number and atomic mass in above formula,

NumberofNeutrons=13153=78

Therefore, the number of neutrons are 78_ .

The number of proton is equal to the atomic number of element. Therefore, the number of protons in 131I are 53_ .

The number of electrons is equal to atomic number or number of protons. Therefore, the number of electrons in 131I are 53_ .

(d)

Interpretation Introduction

To determine: The number of neutrons, protons and electrons in a given atom.

(d)

Expert Solution
Check Mark

Answer to Problem 2.30QP

Solution

The number of neutrons, number of protons and number of electrons for the given atom are 136_ , 86_ and 86_ , respectively.

Explanation of Solution

Explanation

The atomic number of 222Rn is 86 and atomic mass is 222 .

Calculate the number of neutrons by formula,

Numberofneutrons=atomicmassatomicnumber

Substitute value of atomic number and atomic mass in above formula,

NumberofNeutrons=22286=136

Therefore, the number of neutron is 136_ .

The number of proton is equal to the atomic number of element. Therefore, the number of protons in 222Rn are 86_ .

The number of electrons is equal to atomic number or number of protons. Therefore, the number of electrons in 222Rn are 86_ .

Conclusion

  1. a. The number of neutrons, number of protons and number of electrons for the given atom are 6_ , 5_ and 5_ , respectively.
  2. b. The number of neutrons, number of protons and number of electrons for the given atom are 10_ , 9_ and 9_ , respectively.
  3. c. The number of neutrons, number of protons and number of electrons for the given atom are 78_ , 53_ and 53_ , respectively.
  4. d. The number of neutrons, number of protons and number of electrons for the given atom are 136_ , 86_ and 86_ , respectively

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Chapter 2 Solutions

Chemistry

Ch. 2 - Prob. 2.3VPCh. 2 - Prob. 2.4VPCh. 2 - Prob. 2.5VPCh. 2 - Prob. 2.6VPCh. 2 - Prob. 2.7VPCh. 2 - Prob. 2.8VPCh. 2 - Prob. 2.9QPCh. 2 - Prob. 2.10QPCh. 2 - Prob. 2.11QPCh. 2 - Prob. 2.12QPCh. 2 - Prob. 2.13QPCh. 2 - Prob. 2.14QPCh. 2 - Prob. 2.15QPCh. 2 - Prob. 2.16QPCh. 2 - Prob. 2.17QPCh. 2 - Prob. 2.18QPCh. 2 - Prob. 2.19QPCh. 2 - Prob. 2.20QPCh. 2 - Prob. 2.21QPCh. 2 - Prob. 2.22QPCh. 2 - Prob. 2.23QPCh. 2 - Prob. 2.24QPCh. 2 - Prob. 2.25QPCh. 2 - Prob. 2.26QPCh. 2 - Prob. 2.27QPCh. 2 - Prob. 2.28QPCh. 2 - Prob. 2.29QPCh. 2 - Prob. 2.30QPCh. 2 - Prob. 2.31QPCh. 2 - Prob. 2.32QPCh. 2 - Prob. 2.33QPCh. 2 - Prob. 2.34QPCh. 2 - Prob. 2.35QPCh. 2 - Prob. 2.36QPCh. 2 - Prob. 2.38QPCh. 2 - Prob. 2.39QPCh. 2 - Prob. 2.40QPCh. 2 - Prob. 2.41QPCh. 2 - Prob. 2.42QPCh. 2 - Prob. 2.43QPCh. 2 - Prob. 2.44QPCh. 2 - Prob. 2.45QPCh. 2 - Prob. 2.46QPCh. 2 - Prob. 2.47QPCh. 2 - Prob. 2.48QPCh. 2 - Prob. 2.49QPCh. 2 - Prob. 2.50QPCh. 2 - Prob. 2.51QPCh. 2 - Prob. 2.52QPCh. 2 - Prob. 2.53QPCh. 2 - Prob. 2.54QPCh. 2 - Prob. 2.55QPCh. 2 - Prob. 2.56QPCh. 2 - Prob. 2.57QPCh. 2 - Prob. 2.58QPCh. 2 - Prob. 2.59QPCh. 2 - Prob. 2.60QPCh. 2 - Prob. 2.61QPCh. 2 - Prob. 2.62QPCh. 2 - Prob. 2.63QPCh. 2 - Prob. 2.64QPCh. 2 - Prob. 2.65QPCh. 2 - Prob. 2.66QPCh. 2 - Prob. 2.67QPCh. 2 - Prob. 2.68QPCh. 2 - Prob. 2.69QPCh. 2 - Prob. 2.70QPCh. 2 - Prob. 2.71QPCh. 2 - Prob. 2.72QPCh. 2 - Prob. 2.73QPCh. 2 - Prob. 2.74QPCh. 2 - Prob. 2.75QPCh. 2 - Prob. 2.76QPCh. 2 - Prob. 2.77QPCh. 2 - Prob. 2.78QPCh. 2 - Prob. 2.79QPCh. 2 - Prob. 2.80QPCh. 2 - Prob. 2.81QPCh. 2 - Prob. 2.82QPCh. 2 - Prob. 2.83QPCh. 2 - Prob. 2.84QPCh. 2 - Prob. 2.85QPCh. 2 - Prob. 2.86QPCh. 2 - Prob. 2.87QPCh. 2 - Prob. 2.88QPCh. 2 - Prob. 2.89QPCh. 2 - Prob. 2.90QPCh. 2 - Prob. 2.91QPCh. 2 - Prob. 2.92QPCh. 2 - Prob. 2.93QPCh. 2 - Prob. 2.94QPCh. 2 - Prob. 2.95QPCh. 2 - Prob. 2.96QPCh. 2 - Prob. 2.97QPCh. 2 - Prob. 2.98QPCh. 2 - Prob. 2.99QPCh. 2 - Prob. 2.100QPCh. 2 - Prob. 2.101QPCh. 2 - Prob. 2.102QPCh. 2 - Prob. 2.103QPCh. 2 - Prob. 2.104APCh. 2 - Prob. 2.105APCh. 2 - Prob. 2.106APCh. 2 - Prob. 2.107APCh. 2 - Prob. 2.108APCh. 2 - Prob. 2.109APCh. 2 - Prob. 2.110APCh. 2 - Prob. 2.111APCh. 2 - Prob. 2.112APCh. 2 - Prob. 2.113APCh. 2 - Prob. 2.114APCh. 2 - Prob. 2.115APCh. 2 - Prob. 2.116APCh. 2 - Prob. 2.117APCh. 2 - Prob. 2.118APCh. 2 - Prob. 2.119APCh. 2 - Prob. 2.120APCh. 2 - Prob. 2.121APCh. 2 - Prob. 2.122APCh. 2 - Prob. 2.123APCh. 2 - Prob. 2.125APCh. 2 - Prob. 2.126APCh. 2 - Prob. 2.127AP
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