General Chemistry
General Chemistry
7th Edition
ISBN: 9780073402758
Author: Chang, Raymond/ Goldsby
Publisher: McGraw-Hill College
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Chapter 2, Problem 2.1QP

(a)

Interpretation Introduction

Interpretation:

The terms α particle has to be defined.

Concept introduction:

α particles or α rays are made up of positively charged particles which are deflected away from a positively charged plate.  This is emitted by radioactive substances.

(a)

Expert Solution
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Explanation of Solution

α particles

Radioactivity is the spontaneous emission of radiation by a substance.  When substances like uranium produces radiation, there are of three types present in it.  α particles or α rays are made up of positively charged particles which are deflected away from a positively charged plate.  α particles or α rays consist of two protons and two neutrons similar to helium nucleus.

(b)

Interpretation Introduction

Interpretation:

The terms β particle has to be defined.

Concept introduction:

β particles or β rays are made up of electrons which are deflected away from a negatively charged plate.  This is emitted by radioactive substances.

(b)

Expert Solution
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Explanation of Solution

β particles

Radioactivity is the spontaneous emission of radiation by a substance.  When substances like uranium produces radiation, there are of three types present in it.  β particles or β rays are made up of electrons which are deflected away from a negatively charged plate.  This is emitted by radioactive substances.  This is a  high energy electron or positron.

(c)

Interpretation Introduction

Interpretation:

The terms γ ray has to be defined.

Concept introduction:

γ rays are of high energy.  They have no charge.  Therefore they are unaffected by external magnetic or electric field.  This is emitted by radioactive substances.

(c)

Expert Solution
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Explanation of Solution

γ rays

Radioactivity is the spontaneous emission of radiation by a substance.  When substances like uranium produces radiation, there are of three types present in it.  γ rays are of high energy.  They have no charge.  Therefore they are unaffected by external magnetic or electric field.  This is emitted by radioactive substances.  It consist of photons.  They ionize atoms.  Thus, they are biologically hazardous.

(d)

Interpretation Introduction

Interpretation:

The terms X ray has to be defined.

Concept introduction:

X rays are produced when cathode rays are pointed towards glass or metal.  X rays have high energy to penetrate matter.  X rays are not deflected by electric or magnetic fields, which tells that X rays do not have charged particles.

(d)

Expert Solution
Check Mark

Explanation of Solution

X rays

X rays are produced when cathode rays are pointed towards glass or metal.  X rays have high energy to penetrate matter.  X rays are not deflected by electric or magnetic fields, which tells that X rays do not have charged particles. X-ray cannot penetrate bone.  Therefore, this can be used to check breaks or fractures in bones.  X-rays are used to identify tumors also.

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Chapter 2 Solutions

General Chemistry

Ch. 2.7 - Prob. 1PECh. 2.7 - Prob. 2PECh. 2.7 - Prob. 3PECh. 2.7 - Prob. 4PECh. 2.7 - Prob. 5PECh. 2.8 - Prob. 1RCCh. 2 - Prob. 2.1QPCh. 2 - Prob. 2.2QPCh. 2 - Prob. 2.3QPCh. 2 - 2.4 Describe the contributions of these scientists...Ch. 2 - 2.5 A sample of a radioactive element is found to...Ch. 2 - 2.6 Describe the experimental basis for believing...Ch. 2 - Prob. 2.7QPCh. 2 - 2.8 Roughly speaking, the radius of an atom is...Ch. 2 - Prob. 2.9QPCh. 2 - Prob. 2.10QPCh. 2 - 2.11 What is the mass number of an iron atom that...Ch. 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 - 2.31 Identify the following as elements or...Ch. 2 - Prob. 2.32QPCh. 2 - Prob. 2.33QPCh. 2 - Prob. 2.34QPCh. 2 - Prob. 2.35QPCh. 2 - Prob. 2.36QPCh. 2 - Prob. 2.37QPCh. 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. 2.62QPCh. 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. 2.76SPCh. 2 - Prob. 2.77SPCh. 2 - Prob. 2.78SPCh. 2 - Prob. 2.79SPCh. 2 - Prob. 2.80SPCh. 2 - Prob. 2.81SPCh. 2 - Prob. 2.82SP
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