AIM : How do we measure the rate of radioactivity of an element?

Slides:

Advertisements

Similar presentations

Mr. ShieldsRegents Chemistry U02 L03 Nuclear Decay Series Uranium has an atomic number greater than 83. Therefore it is naturally radioactive. Most abundant.

Advertisements

Aim: What is the half-life of a radioisotope Do Now:

Exponential Growth and Decay 6.4. Exponential Decay Exponential Decay is very similar to Exponential Growth. The only difference in the model is that.

Warm Up Where are the biggest atoms on the periodic table? 2.Arrange the following elements in increasing electronegativity: Cl, As, Sn 3.Which.

Unit 2: The Atom Half- Life. Half Life The time required for one half of the nuclei of a radioactive isotope sample to decay to atoms of a new element.

Nuclear Chemistry: Half-Life. Half Life Definition = time it takes for half of a radioactive sample to decay; describes rate of decay The stability of.

Half-life.  Half-Life - the time required for one half of a sample of a radioisotope to decay, while the other half remains unchanged  Half-lives vary.

Half – Life All radioisotopes have a half life. The half is of any given radioisotope is the amount of time required for one half (50%) of the sample to.

Rates of Nuclear Decay Chapter 10 Section 2 Pg

Wednesday, November 4 th, 2015 The blue grid below represents a quantity of C 14. Each time you click, one half-life goes by and turns red. C 14 – blue.

UNIT 7 NUCLEAR REACTIONS 7.3 Calculating Half Life? May 17, 2011 DO NOW: = /4.5 = If we start with 4.5 grams of Radon-222 and over a period.

CALCULATING HALF-LIFE Aim: How can we measure how much of a radioactive element decayed? DO NOW: If we start with 4.5 grams of Radon- 222 and over a period.

NUCLEAR CHEMISTRY Objectives Objective 1 Define radioactivity and distinguish between natural and artificial.

Radioactive Isotopes and Half Life 1. I can explain what a Radioactive Half-Life is and do a calculation with both a T-table and by equation. 2.

DO NOW: (5mins) TOPIC : Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? TOPIC : ELECTRON CONFIGURATION.

Warm - Up Using the alpha decay complete the following: Rf 

Radioactive Decay.

Balancing Nuclear Equations & Calculating Half-Life

a. Differentiate among alpha and beta particles and gamma radiation.

AGENDA 10/28/08 DO NOW: (5 mins) Solving Gas Law Problem

5.4 Half-Life of a Radioisotope

Nuclear Chemistry.

Chapter 9 Nuclear Radiation

Radioactivity half-life half longer unique has a t½ = 3 min 50% 25%

AGENDA 10/27/08 DO NOW: (5 mins) Gas Law equation MINI LESSON:(10-15)

Nuclear Chemistry Chemistry involving changes in the nucleus References: Text Chapter 19 Review Book Topic 12.

The Nuclear Atom In 1932, James Chadwick discovered a nuclear particle that was not affected by a charge. The nucleus contains PROTONS and.

Topic: Nuclear Chemistry

Half-Life of Radioactive Elements

Chemistry Do Now Directions: Take out your Do Now sheet and begin.

Half – Life Problems.

Atomic Theory Unit Half-Life.

RADIOACTIVE DECAY SERIES

Topic: Half-Life.

100% 50% 25% Each half life reduces the mass of the sample by half. Calculate the half life of a substance if 12.5 % of it remains after 90 years?

Uranium has an atomic number greater than

NUCLEAR CHEMISTRY.

Time it takes for 1/2 of the radioactive atoms in a sample to decay.

Radioactivity, Half-life, and Nuclear Reactions

Nuclear Decay Series & Isotopic Half-Lifes

Radioactive Decay Lesson Plan

Interpret Graphs 1 2 A half-life (t ) is the time required for one-half of the nuclei in a radioisotope sample to decay to products. Copyright © Pearson.

Balancing Nuclear Equations & Calculating Half-Life

NUCLEAR CHEMISTRY.

PACKET #14: Nuclear Chemistry Reference Table: N and O

THIS SERIES OF REACTIONS IS A TRANSMUTATION SERIES, A SERIES OF NUCLEII DECOMPOSE INTO ITHER SPECIES UNTILL A STABLE ISOTOPE IS PRODUCED TO END THE PROCESS.

Time it takes for ½ of a radioisotope to decay

Unit: Nuclear Chemistry

Nuclear Decay Half-Life Practice.

Nuclear Decay Series & Isotopic Half-Lifes

Warm up: The half life of a particular element is 10 days. Answer the following questions using that information. How many days will have passed after.

Half-Life Half-life is the time required for half of a sample of a radioactive substance to disintegrate by radioactive decay. Atoms with shorter half-lives.

The half-life of a radioactive element is the time it takes for half of its atoms to decay into something else If you have 100 grams of a substance and.

Do Now & Announcements Take out HW to be checked Nuclear Quiz FRI 12/5

On a sheet of loose leaf, write down the

Uses of Nuclear Chemistry (and half life post lab)

“nucleus” (Ex. Carbon-14)

Radioactive Dating.

2.2 Half-life Objective 1:i

Aim: What is a half life of an element?

Rates of Nuclear Decay These stone tools from the archaeological site in Cactus Hill, Virginia, are at least 15,000 years old. Scientists estimated the.

Half Life and Radioactive Decay

Nuclear Transformations

Chapter 21 Section 1 – The Nucleus Nuclear Chemistry.

14.4: Radioactivity and Nuclear Reactions

Presentation transcript:

AIM : How do we measure the rate of radioactivity of an element? TOPIC: RATE OF RADIOACTIVITY AIM : How do we measure the rate of radioactivity of an element? TOPIC: INTROUCTION TO NUCLEAR CHEMISTRY AIM : How do we properly utilize formulas & equations from the chemistry reference table? ODUCTION TO TOPIC: Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? AGENDA 02/10/09 DO NOW: Showing & writing nuclear equation MINI LESSON: describing half lives of an element measuring rate of radioactivity ACTIVITY: Solving sample problems on rate of radioactivity REFLECTION HOMEWORK DO NOW: (5-10 mins) PROBLEM #1: A radioisotope has a half life of 20 days. 5 gram remains after 60 days. What was the initial amount of the radioisotopes?

AIM : How do we measure the rate of radioactivity of an element? TOPIC: RATE OF RADIOACTIVITY AIM : How do we measure the rate of radioactivity of an element? TOPIC: INTROUCTION TO NUCLEAR CHEMISTRY AIM : How do we properly utilize formulas & equations from the chemistry reference table? ODUCTION TO TOPIC: Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? AGENDA 02/10/09 DO NOW: Showing & writing nuclear equation MINI LESSON: describing half lives of an element measuring rate of radioactivity ACTIVITY: Solving sample problems on rate of radioactivity REFLECTION HOMEWORK DO NOW: (5-10 mins)

AIM : How do we measure the rate of radioactivity of an element? TOPIC: RATE OF RADIOACTIVITY AIM : How do we measure the rate of radioactivity of an element? TOPIC: INTROUCTION TO NUCLEAR CHEMISTRY AIM : How do we properly utilize formulas & equations from the chemistry reference table? ODUCTION TO TOPIC: Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? AGENDA 02/10/09 DO NOW: Showing & writing nuclear equation MINI LESSON: describing half lives of an element measuring rate of radioactivity ACTIVITY: Solving sample problems on rate of radioactivity REFLECTION HOMEWORK HOMEWORK: (5 mins) PROBLEM : A radioisotope has a half life of 1600 yrs. A 400 gram sample was allowed to decay for 9600 yrs. What fraction will remain? Name the element.

TOPIC: RATE OF RADIOACTIVITY AIM : How do we measure the rate of radioactivity of an element? AIM : How do we measure the rate of radioactivity of an element? TOPIC: Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? AGENDA 02/10/09 DO NOW: Showing & writing nuclear equation MINI LESSON: describing half lives of an element measuring rate of radioactivity ACTIVITY: Solving sample problems on rate of radioactivity REFLECTION HOMEWORK DO NOW: (5mins) Show the radioactive decay of Phosphorus-32 _______ + ________ 32 X -1 32 O e P 16 15 Stable element particle

AIM : How do we measure the rate of radioactivity of an element? TOPIC: RATE OF RADIOACTIVITY AIM : How do we measure the rate of radioactivity of an element? TOPIC: INTROUCTION TO NUCLEAR CHEMISTRY AIM : How do we properly utilize formulas & equations from the chemistry reference table? ODUCTION TO TOPIC: Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? AGENDA 02/10/09 DO NOW: Showing & writing nuclear equation MINI LESSON: describing half lives of an element measuring rate of radioactivity ACTIVITY: Solving sample problems on rate of radioactivity REFLECTION HOMEWORK DO NOW: (5-10 mins) PROBLEM #2: A radioisotope has a half life of 10 days. I gram remains after 40 days. What was the initial amount of the radioisotopes?

AIM : How do we measure the rate of radioactivity of an element? TOPIC: RATE OF RADIOACTIVITY AIM : How do we measure the rate of radioactivity of an element? TOPIC: INTROUCTION TO NUCLEAR CHEMISTRY AIM : How do we properly utilize formulas & equations from the chemistry reference table? ODUCTION TO TOPIC: Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? AGENDA 02/10/09 DO NOW: Showing & writing nuclear equation MINI LESSON: describing half lives of an element measuring rate of radioactivity ACTIVITY: Solving sample problems on rate of radioactivity REFLECTION HOMEWORK MINI LESSON: (10-15 mins) RATE OF RADIOACTOVITY HALF-LIFE - The time it takes for half of the of sample to decay

AIM : How do we measure the rate of radioactivity of an element? TOPIC: RATE OF RADIOACTIVITY AIM : How do we measure the rate of radioactivity of an element? TOPIC: INTROUCTION TO NUCLEAR CHEMISTRY AIM : How do we properly utilize formulas & equations from the chemistry reference table? ODUCTION TO TOPIC: Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? AGENDA 02/10/09 DO NOW: Showing & writing nuclear equation MINI LESSON: describing half lives of an element measuring rate of radioactivity ACTIVITY: Solving sample problems on rate of radioactivity REFLECTION HOMEWORK HOMEWORK: (5-10 mins) PROBLEM : A radioisotope has a half life of 1600 yrs. A 400 gram sample was allowed to decay for 9600 yrs. What fraction will remain? Name the element.

( ) t 1 t = T= t AIM : How do we properly utilize formulas & equations TOPIC: INTROUCTION TO NUCLEAR CHEMISTRY AIM : How do we properly utilize formulas & equations from the chemistry reference table? ODUCTION TO TOPIC: RATE OF RADIOACTIVITY AIM : How do we measure the rate of radioactivity of an element? TOPIC: Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? AGENDA 02/10/09 DO NOW: Showing & writing nuclear equation MINI LESSON: describing half lives of an element measuring rate of radioactivity ACTIVITY: Solving sample problems on rate of radioactivity REFLECTION HOMEWORK MINI LESSON: (10-15 mins) FORMULAS: t T 1 2 t = Total time elapsed ( ) Fraction remaining T= Hal-life t T = # of half-life periods

TOPIC: RATE OF RADIOACTIVITY AIM : How do we measure the rate of radioactivity of an element? TOPIC: INTROUCTION TO NUCLEAR CHEMISTRY AIM : How do we properly utilize formulas & equations from the chemistry reference table? ODUCTION TO TOPIC: Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? AGENDA 02/10/09 DO NOW: Showing & writing nuclear equation MINI LESSON: describing half lives of an element measuring rate of radioactivity ACTIVITY: Solving sample problems on rate of radioactivity REFLECTION HOMEWORK MINI LESSON: (10-15 mins) PROBLEM: Cobalt-60 has a half-life of 5.26 years. A 10 gram sample was allowed to decay for 20 years. What fraction will remain? t T UNKNOWN: ( ) 1 2 Fraction remaining 20 yrs FORMULA: 1 2 ( ) 5 yrs KNOWN: T = 5.26 yrs Original mass = 10 g Total Time Elapsed = 20 yrs

AIM : How do we properly utilize formulas & equations TOPIC: INTROUCTION TO NUCLEAR CHEMISTRY AIM : How do we properly utilize formulas & equations from the chemistry reference table? ODUCTION TO TOPIC: RATE OF RADIOACTIVITY AIM : How do we measure the rate of radioactivity of an element? TOPIC: Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? AGENDA 02/10/09 DO NOW: Showing & writing nuclear equation MINI LESSON: describing half lives of an element measuring rate of radioactivity ACTIVITY: Solving sample problems on rate of radioactivity REFLECTION HOMEWORK ACTIVITY: (5-10 mins) PROBLEM# 1: Potassium-37 has a half-life of 1.23 s. A 60 gram sample was allowed to decay for 6 s. What fraction will remain? PROBLEM #2: A radioisotope has a half life of 10 days. I gram remains after 40 days. What was the initial amount of the radioisotopes?

AIM : How do we measure the rate of radioactivity of an element? TOPIC: RATE OF RADIOACTIVITY AIM : How do we measure the rate of radioactivity of an element? TOPIC: INTROUCTION TO NUCLEAR CHEMISTRY AIM : How do we properly utilize formulas & equations from the chemistry reference table? ODUCTION TO TOPIC: Reorientation/ Setting up Renzulli Learning Profile AIM : How do set up our Individual Learning Profile ? AGENDA 02/10/09 DO NOW: Showing & writing nuclear equation MINI LESSON: describing half lives of an element measuring rate of radioactivity ACTIVITY: Solving sample problems on rate of radioactivity REFLECTION HOMEWORK HOMEWORK: (5-10 mins) PROBLEM : A radioisotope has a half life of 1600 yrs. A 400 gram sample was allowed to decay for 9600 yrs. What fraction will remain? Name the element.