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Section 1

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Magnetic field has no effect on the gamma ray.

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Mar 1, 2020

Cards (26)

Section 1

(26 cards)

Magnetic field has no effect on the gamma ray.

Front

(9) Use Figure 1 for parts (a) - (e). Recall the Right-Hand Rule! ------------------------------------------------ E)How does the magnetic field affect the gamma ray?

Back

(13) Potassium-40 is a radioactive isotope that occurs in bananas, and even in our bodies. The half-life (t 12) of Potassium-40 is 1.248 x 109 years and decays into Calcium-40. For part (a) - (e), we will start with a sample of 50 kilograms of Potassium- and 0 kilograms of Calcium-40. -------------------------------------------------------------- (c) How much Potassium-40 is left after 3 half-lives?

Front

c) 6.25 kg

Back

The element Uranium-238 (238 over 92, letter U) will decay into Thorium-234 (234 over 90, Letter Th) . What mode of decay is this?

Front

Alpha decay

Back

16) From oldest to youngest: C, B, A, D, E

Front

List the relative ages of the rocks from oldest to youngest.

Back

Right

Front

(9) Use Figure 1 for parts (a) - (e). Recall the Right-Hand Rule! -------------------------------------------------------------- C) What is the direction of the force of the beta particle as it leaves the lead block?

Back

What are the products of beta-plus decay?

Front

Daughter nucleus + positron + energy

Back

What are the products of gamma decay?

Front

Daughter nucleus + gamma radiation

Back

nuclear fusion

Front

What is the nuclear process is in figure 3?

Back

b. 8 neutrons

Front

In the element 16 over 8, Letter O -------------------------------------------------------------- (b)How many neutrons are there?

Back

Nuclear Fission

Front

What is the nuclear process in Figure 2?

Back

Up

Front

(9) Use Figure 1 for parts (a) - (e). Recall the Right-Hand Rule! -------------------------------------------------------------- B) What is the direction of the velocity of the beta particle as it leaves the lead block?

Back

Dysprosium-152: 152 66 Dy → 162 66 Dy +γ is what mode of decay?

Front

[Note: the top number (mass #) should be 152 on both sides.] Gamma decay

Back

In

Front

(9) Use Figure 1 for parts (a) - (e). Recall the Right-Hand Rule! -------------------------------------------------------------- (a) What is the direction of the magnetic field?

Back

If Radium-225 (225 over 88, Letter Ra) decays into Actinium-225 (225 over 89, Letter Ac), what mode of decay is it?

Front

Beta-minus decay

Back

15) a. 8 protons

Front

In the element 16 over 8, Letter O -------------------------------------------------------------- (a) How many protons are there?

Back

14) 300 days

Front

Figure 5 below shows the graph of some element that is decaying. The y-axis is the amount in kilograms, and the x-axis is the time in days. According to the graph, what is the half-life of this element?

Back

(13) Potassium-40 is a radioactive isotope that occurs in bananas, and even in our bodies. The half-life (t 12) of Potassium-40 is 1.248 x 109 years and decays into Calcium-40. For part (a) - (e), we will start with a sample of 50 kilograms of Potassium- and 0 kilograms of Calcium-40. ------------------------------------------------------- (a) What mode of decay is Potassium-40 if it decays into Calcium-40?

Front

a) Beta-minus decay

Back

Explain what the variables mean in E = mc2. What does it tell us about the 3 different modes of decay?

Front

a. Energy = mass x square of the speed of light -------------------------------------------------------------- b. Mass and energy are related. A very small amount of mass turns into energy.

Back

(13) Potassium-40 is a radioactive isotope that occurs in bananas, and even in our bodies. The half-life (t 12) of Potassium-40 is 1.248 x 109 years and decays into Calcium-40. For part (a) - (e), we will start with a sample of 50 kilograms of Potassium- and 0 kilograms of Calcium-40. ------------------------------------------------------- (b) An ancient banana was found to have 3 half-lives gone by. How old is the banana?

Front

b) An ancient banana was found to have 3 half-lives gone by. How old is the banana?

Back

What are the products of alpha decay?

Front

Daughter nucleus + Helium-4 + energy

Back

What are the products of beta-minus decay?

Front

Daughter nucleus + electron + energy

Back

Beta has much smaller mass, so easier to move.

Front

(9) Use Figure 1 for parts (a) - (e). Recall the Right-Hand Rule! -------------------------------------------------------------- D) Why does the beta particle bend more than the alpha particle?

Back

(13) Potassium-40 is a radioactive isotope that occurs in bananas, and even in our bodies. The half-life (t 12) of Potassium-40 is 1.248 x 109 years and decays into Calcium-40. For part (a) - (e), we will start with a sample of 50 kilograms of Potassium- and 0 kilograms of Calcium-40. -------------------------------------------------------------- (d) How much Calcium-40 is left after 3 half-lives?

Front

d) 43.75 kg

Back

Front

Back

(13) Potassium-40 is a radioactive isotope that occurs in bananas, and even in our bodies. The half-life (t 12) of Potassium-40 is 1.248 x 109 years and decays into Calcium-40. For part (a) - (e), we will start with a sample of 50 kilograms of Potassium- and 0 kilograms of Calcium-40. -------------------------------------------------------------- (e) If 1.123 x 1010 years have gone by, how much Potassium-40 is left from the original sample?

Front

e) 9 half-lives have gone by, so there are 0.098 kg of Potassium-40 left

Back

1. 225 over 89 letter, Ac 2. 225 over 89 letter, Ac 3. A 4. A 5. 213 over 83 Letters, Bi 6. 213 over 83 Letters, Bi 7. B 8. A 9. 209 over 83 Letters Bi 10. 209 over 83 Letters Bi 11. 205 over 81 letters, Tl

Front

Fill in the chart below to show the decay series of Np237.

Back