Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN: 9780078746376
Author: Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher: Glencoe/McGraw-Hill School Pub Co
Question
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Chapter 4.3, Problem 21SSC
Interpretation Introduction

Interpretation:

Subatomic particle that identifies an atom as that of a particular element needs to be determined.

Concept introduction:

Atom is the smallest particle in the element that can neither be created nor be destroyed. It is composed of three subatomic particles, protons, neutrons and electrons.

Expert Solution & Answer
Check Mark

Answer to Problem 21SSC

The subatomic particle proton identifies an atom of a particular element.

Explanation of Solution

An atom is defined on the basis of an atomic number. It is discovered by the scientist that in an element there are atoms with unique positive charge. This positive charge is due to positively charged particles known as protons present in the nucleus of an atom. Hence, the number of protons in an atom identifies it as an atom of a particular element.

For example: An atom has 7 protons, so its atomic number is 7, now according to modern periodic table the element with atomic number 7 is Nitrogen. Thus, the atom is of element-Nitrogen.

Conclusion

Hence, number of protons can identify an atom of a particular element.

Chapter 4 Solutions

Chemistry: Matter and Change

Ch. 4.2 - Prob. 11SSCCh. 4.3 - Prob. 12PPCh. 4.3 - Prob. 13PPCh. 4.3 - Prob. 14PPCh. 4.3 - Prob. 15PPCh. 4.3 - Prob. 16PPCh. 4.3 - Prob. 17PPCh. 4.3 - Prob. 18PPCh. 4.3 - Prob. 19PPCh. 4.3 - Prob. 20SSCCh. 4.3 - Prob. 21SSCCh. 4.3 - Prob. 22SSCCh. 4.3 - Prob. 23SSCCh. 4.3 - Prob. 24SSCCh. 4.4 - Prob. 25SSCCh. 4.4 - Prob. 26SSCCh. 4.4 - Prob. 27SSCCh. 4.4 - Prob. 28SSCCh. 4.4 - Prob. 29SSCCh. 4 - Prob. 30ACh. 4 - Whose work is credited with being the beginning of...Ch. 4 - Prob. 32ACh. 4 - Prob. 33ACh. 4 - Prob. 34ACh. 4 - Prob. 35ACh. 4 - State the main points of Dalton’s atomic theory...Ch. 4 - Prob. 37ACh. 4 - Prob. 38ACh. 4 - What particles are found in the nucleus of an...Ch. 4 - How was the overall charge distributed in the plum...Ch. 4 - How did the charge distribution in the plum...Ch. 4 - Label the subatomic particles shown in Figure...Ch. 4 - Arrange the following subatomic particles in order...Ch. 4 - Explain why atoms are electrically neutral.Ch. 4 - What is the charge of the nucleus of element 89?Ch. 4 - Which particles account for most of an atom’s...Ch. 4 - Prob. 47ACh. 4 - Prob. 48ACh. 4 - Prob. 49ACh. 4 - Prob. 50ACh. 4 - Prob. 51ACh. 4 - Prob. 52ACh. 4 - Prob. 53ACh. 4 - Prob. 54ACh. 4 - Prob. 55ACh. 4 - Prob. 56ACh. 4 - Prob. 57ACh. 4 - How do isotopes of a given element differ? How are...Ch. 4 - How is an atom’s atomic number related to its...Ch. 4 - How is the mass number related to the number of...Ch. 4 - How can you determine the number of neutrons in an...Ch. 4 - Prob. 62ACh. 4 - Standard Units Define the atomic mass unit. What...Ch. 4 - Prob. 64ACh. 4 - Prob. 65ACh. 4 - How many protons and electrons are contained in an...Ch. 4 - Carbon A carbon atom has a mass number of 12 and...Ch. 4 - Mercury An isotope of mercury has 80 protons and...Ch. 4 - Xenon An isotope of xenon has an atomic number of...Ch. 4 - If an atom has 18 electrons, how many protons does...Ch. 4 - Sulfur Show that the atomic mass of the element...Ch. 4 - Prob. 72ACh. 4 - How many electrons, protons, and neutrons...Ch. 4 - How many electrons, protons, and neutrons are...Ch. 4 - Prob. 75ACh. 4 - Prob. 76ACh. 4 - Prob. 77ACh. 4 - Prob. 78ACh. 4 - Prob. 79ACh. 4 - Prob. 80ACh. 4 - Prob. 81ACh. 4 - Prob. 82ACh. 4 - Prob. 83ACh. 4 - Prob. 84ACh. 4 - Prob. 85ACh. 4 - Prob. 86ACh. 4 - Prob. 87ACh. 4 - Prob. 88ACh. 4 - Prob. 89ACh. 4 - Prob. 90ACh. 4 - Prob. 91ACh. 4 - Prob. 92ACh. 4 - Prob. 93ACh. 4 - Prob. 94ACh. 4 - Prob. 95ACh. 4 - Prob. 96ACh. 4 - Prob. 97ACh. 4 - Prob. 98ACh. 4 - Prob. 99ACh. 4 - Prob. 100ACh. 4 - Prob. 101ACh. 4 - Prob. 102ACh. 4 - Prob. 103ACh. 4 - Prob. 104ACh. 4 - Prob. 105ACh. 4 - Prob. 106ACh. 4 - Prob. 107ACh. 4 - Prob. 108ACh. 4 - Prob. 109ACh. 4 - Prob. 110ACh. 4 - Prob. 111ACh. 4 - Prob. 112ACh. 4 - Prob. 113ACh. 4 - Prob. 114ACh. 4 - Prob. 115ACh. 4 - Prob. 116ACh. 4 - Prob. 117ACh. 4 - Prob. 118ACh. 4 - Prob. 120ACh. 4 - Prob. 121ACh. 4 - Prob. 122ACh. 4 - Prob. 123ACh. 4 - Prob. 124ACh. 4 - Prob. 125ACh. 4 - Prob. 126ACh. 4 - Prob. 127ACh. 4 - Prob. 128ACh. 4 - Prob. 129ACh. 4 - Prob. 1STPCh. 4 - Prob. 2STPCh. 4 - Prob. 3STPCh. 4 - Prob. 4STPCh. 4 - Prob. 5STPCh. 4 - Prob. 6STPCh. 4 - Prob. 7STPCh. 4 - Prob. 8STPCh. 4 - Prob. 9STPCh. 4 - Prob. 10STPCh. 4 - Prob. 11STPCh. 4 - Prob. 12STPCh. 4 - Prob. 13STPCh. 4 - Prob. 14STPCh. 4 - Prob. 15STPCh. 4 - Prob. 16STPCh. 4 - Prob. 17STPCh. 4 - Prob. 18STPCh. 4 - Prob. 19STPCh. 4 - Prob. 20STPCh. 4 - Prob. 21STP
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