/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q 2 Exercise How many protons and how many ne... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 42: Q 2 Exercise (page 1236)

How many protons and how many neutrons are in(a)He3,(b)P32,(c)S32, and(d)U238?

Short Answer

Expert verified

Therefore,

a.) 1

b.) 17

c.) 16

d.) 146

Step by step solution

01

Given information

(a)He3,(b)P32,(c)S32, and(d)U238?

02

Explanation (a)

The nucleus is made up of Z protons and A - Z neutrons, as we know.

a.) We have 3He

Atomic number is: 2

Number of protons is: 2

So, number of neutrons for 3He is: 3-2 = 1

03

Explanation (b)

b.) We have 32P

Atomic number is: 15

Number of protons is: 15

So, number of neutrons for 32P is: 32-15 = 17

04

Explanation (c)

c.) We have 32S:

Atomic number is: 16

Number of protons is: 16

So, number of neutrons for 32S is 32- 16 = 16

05

Explanation (d)

d.) We have 228U:

Atomic number is: 92

Number of protons is: 92

So, number of neutrons for 228U is 228-92 = 146

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

The element gallium has two stable isotopes: 69 Ga with an atomic mass of 68.92 u and 71 Ga with an atomic mass of 70.92 u. A periodic table shows that the chemical atomic mass of gallium is 69.72 u. What is the percent abundance of 69 Ga?

Could a 56Fenucleus fission into two 28Alnuclei? Your answer, which should include some calculations, should be based on the curve of binding energy.

The radium isotope R223a, an alpha emitter, has a half-life of localid="1650483334573" 11.43days. You happen to have a localid="1650483350108" 1.0gcube of R223a, so you decide to use it to boil water for tea. You fill a well-insulated container with 100mLof water at 18掳Cand drop in the cube of radium. How long will it take the water to boil?

You learned in Chapter 41 that the binding energy of the electron in a hydrogen atom is 13.6eV.

a. By how much does the mass decrease when a hydrogen atom is formed from a proton and an electron? Give your answer both in atomic mass units and as a percentage of the mass of the hydrogen atom.

b. By how much does the mass decrease when a helium nucleus is formed from two protons and two neutrons? Give your answer both in atomic mass units and as a percentage of the mass of the helium nucleus.

c. Compare your answers to parts a and b. Why do you hear it said that mass is 鈥渓ost鈥� in nuclear reactions but not in chemical reactions?

Does each nuclear energy-level diagram in FIGURE Q42.4 represent a nuclear ground state, an excited nuclear state, or an impossible nucleus? Explain.
See all solutions

Recommended explanations on Physics Textbooks

Force

Read Explanation

Translational Dynamics

Read Explanation

Electric Charge Field and Potential

Read Explanation

Geometrical and Physical Optics

Read Explanation

Torque and Rotational Motion

Read Explanation

Wave Optics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.