Physics > QUESTIONS & ANSWERS > Atomic Structure Techniques. PHYSICS QUIESTION PAPER AND ANSWERS. GRADED A+ (All)

Atomic Structure Techniques. PHYSICS QUIESTION PAPER AND ANSWERS. GRADED A+

Document Content and Description Below

Describe the structure of the nucleus of the isotope shown below. Ac This nucleus has 89 protons and 138 neutrons. The nucleus has 227 nucleons in 89 total. To calculate the number of neutrons, ... subtract the atomic number (smaller number) from the mass number (bigger number). 2. Complete the decay equation, showing an isotope decaying via alpha decay into an unknown element, X. You are expected to know the properties (mass and atomic number) of an alpha particle/helium nucleus. Once you’ve filled those in, work backwards to balance the equation. 3. Complete the decay equation, showing an isotope decaying via beta decay into an unknown element, X. 1 An easy mistake to make on beta decays is to see the -1 and subtract it from the 15 on the left. Always check that the top and bottom lines balance after you’ve put your answer in Determine the half-life of a radioactive source which decreases from an activity of 160 Bq to 20 Bq in 48 years. 160 (x 1/2 =) 80 (x 1/2 =) 40 (x 1/2 =) 20 Count the half-lives 3 half-lives = 48 years 1 half-life = 48/3 = 16 years A flow chart method, like in the first line, can be used to figure out any half-life question. 5. Determine the fraction of a radioactive source which has decayed after 24 hours, if the source has a half-life of 12 hours. Number of half-lives = 24/12 = 2 half lives 100 % --12 hours--> 50% --12 hours--> 25% 25% remaining so fraction which has decayed = 100% - 25% = 75% This sort of question may give you an initial mass (e.g. 200g) and ask you to work out how much is remaining after a certain amount of time. Use the exact same method, but with masses instead of percentages. [Show More]

Last updated: 1 year ago

Preview 1 out of 201 pages

Reviews( 0 )

Recommended For You

 Management> QUESTIONS & ANSWERS > Global Logistics and Supply Chain Management, 4th Edition by Mangan 4th edition Quiz - Answers (All)

preview
Global Logistics and Supply Chain Management, 4th Edition by Mangan 4th edition Quiz - Answers

Test Bank for Global Logistics and Supply Chain Management, 4th Edition, 4e by Mangan, Lalwani, Calatayud TEST BANK ISBN-13: 9781119702993 Full chapters included (This book has combined Test Bank-Ch...

By Test-Bank Lounge , Uploaded: Sep 29, 2022

$10

 *NURSING> QUESTIONS & ANSWERS > NURSING NR 228 Nutrition Week 7 edapt - Nutrition and Biliary Health- nutrition for gastrointestinal health - Chamberlain College of Nursing (All)

preview
NURSING NR 228 Nutrition Week 7 edapt - Nutrition and Biliary Health- nutrition for gastrointestinal health - Chamberlain College of Nursing

NURSING NR 228 Nutrition Week 7 edapt - Nutrition and Biliary Health- nutrition for gastrointestinal health - Chamberlain College of Nursing

By QuizMaster , Uploaded: Mar 29, 2023

$10.5

 *NURSING> QUESTIONS & ANSWERS > NURSING NR 228 Nutrition- Week 3 nutrition edapt - Introduction to Energy - Chamberlain College of Nursing (All)

preview
NURSING NR 228 Nutrition- Week 3 nutrition edapt - Introduction to Energy - Chamberlain College of Nursing

NURSING NR 228 Nutrition- Week 3 nutrition edapt - Introduction to Energy - Chamberlain College of Nursing

By QuizMaster , Uploaded: Mar 29, 2023

$3

 Mathematics> QUESTIONS & ANSWERS > MATHS 221 Week 6 Homework (All)

preview
MATHS 221 Week 6 Homework

MATHS 221 Week 6 Homework 1. A consumer analyst reports that the mean life of a certain type of alkaline battery is no more than 36 months. Write the null and alternative hypotheses and note which i...

By Bobweiss , Uploaded: Aug 21, 2020

$12.5

 *NURSING> QUESTIONS & ANSWERS > American Heart Association BLS Instructor Essentials Exams A and B Questions and 100% correct answers (All)

preview
American Heart Association BLS Instructor Essentials Exams A and B Questions and 100% correct answers

American Heart Association BLS Instructor Essentials Exams A and B Questions and 100% correct answers

By Prof.Pierro , Uploaded: Jun 23, 2022

$16.5

 Human Nutrition> QUESTIONS & ANSWERS > Servsafe Manager 2022 (All CHAPTERS 1-9) Tests(Answered) (All)

preview
Servsafe Manager 2022 (All CHAPTERS 1-9) Tests(Answered)

Servsafe Manager 2022 (All CHAPTERS 1-9) Tests(Answered) Servsafe Manager (Chapter 1) What is a foodborne illness outbreak? - When two or more people report the same illness from eating the same f...

By Professor Lynne , Uploaded: Aug 07, 2022

$14.5

 Information Technology> QUESTIONS & ANSWERS > Google Cloud Sales Credential (All)

preview
Google Cloud Sales Credential

Google Cloud Sales Credentialou are in a sales team meeting with a company whose information technology (IT) department is not very familiar with what is cloud technology. What is the best way to de...

By AMAZING GRACE , Uploaded: Aug 22, 2022

$9.5

 *NURSING> QUESTIONS & ANSWERS > Test Bank For Pharmacotherapeutics for Advanced Practice A Practical Approach 5th Edition by Arcangelo; Peterson; Wilbur; Jennifer A. Reinhold Chapter 1-56 (All)

preview
Test Bank For Pharmacotherapeutics for Advanced Practice A Practical Approach 5th Edition by Arcangelo; Peterson; Wilbur; Jennifer A. Reinhold Chapter 1-56

Excel in advanced practice pharmacotherapeutics exams with the 'Test Bank for Pharmacotherapeutics for Advanced Practice: A Practical Approach' 5th Edition by Virginia Poole Arcangelo, Andrew Peterson...

By Dickson , Uploaded: Jan 03, 2024

$12

 *NURSING> QUESTIONS & ANSWERS > Advanced Medical Life Support (AMLS) Post Test Q&A 2023 (All)

preview
Advanced Medical Life Support (AMLS) Post Test Q&A 2023

1. A 45-year-old patient is found supine on the floor. Healthcare providers note pinpoint pupils, shallow respirations, and vomitus in and around the mouth. What course of action should be taken n...

By Exammate , Uploaded: Aug 14, 2023

$7.5

 Law> QUESTIONS & ANSWERS > CLG 0010 DOD GOV. COM. PUR. CARD OVERVIEW EXAM Questions and Answers. (All)

preview
CLG 0010 DOD GOV. COM. PUR. CARD OVERVIEW EXAM Questions and Answers.

CLG 0010 DOD GOV. COM. PUR. CARD OVERVIEW EXAM Questions and answers, 2022 update, Rated A+ whose responsibility is it to comply with Government agency standards of conduct? (select the three tha...

By bundleHub Solution guider , Uploaded: Aug 28, 2022

$10.5

$12.00

Add to cart

Instant download

Can't find what you want? Try our AI powered Search

OR

GET ASSIGNMENT HELP
56
0

Document information


Connected school, study & course



About the document


Uploaded On

Jun 07, 2022

Number of pages

201

Written in

Seller


seller-icon
bundleHub Solution guider

Member since 2 years

296 Documents Sold


Additional information

This document has been written for:

Uploaded

Jun 07, 2022

Downloads

 0

Views

 56

Document Keyword Tags

THE BEST STUDY GUIDES

Avoid resits and achieve higher grades with the best study guides, textbook notes, and class notes written by your fellow students

custom preview

Avoid examination resits

Your fellow students know the appropriate material to use to deliver high quality content. With this great service and assistance from fellow students, you can become well prepared and avoid having to resits exams.

custom preview

Get the best grades

Your fellow student knows the best materials to research on and use. This guarantee you the best grades in your examination. Your fellow students use high quality materials, textbooks and notes to ensure high quality

custom preview

Earn from your notes

Get paid by selling your notes and study materials to other students. Earn alot of cash and help other students in study by providing them with appropriate and high quality study materials.


$12.00

WHAT STUDENTS SAY ABOUT US


What is Browsegrades

In Browsegrades, a student can earn by offering help to other student. Students can help other students with materials by upploading their notes and earn money.

We are here to help

We're available through e-mail, Twitter, Facebook, and live chat.
 FAQ
 Questions? Leave a message!

Follow us on
 Twitter

Copyright © Browsegrades · High quality services·