Question 1

A radioactive sample will decay completely in two half-lives.

Accepted Answer

A) True 
 B)False

Question 2

Which type of radiation is negatively charged?

Accepted Answer

A) alpha particle 
B) beta particle 
C) positron 
D) gamma ray 
E) All radiation types are negatively charged. 
A) alpha particle 
B) beta particle 
C) positron 
D) gamma ray 
E) All radiation types are negatively charged.

Question 3

What is the correct nuclear symbol for the unknown product "X" in the nuclear equation shown below? $238$
92 U ? X + 4
2 He

Accepted Answer

A)  234
90 Th 
B)  $\begin{array} { c } 
226 \
88
\end{array}$ Ra 
C)  234
90 U 
D)  242
94 Pu 
E)  234
94 Pu 
A)  234
90 Th 
B)  $\begin{array} { c } 
226 \
88
\end{array}$ Ra 
C)  234
90 U 
D)  242
94 Pu 
E)  234
94 Pu

Question 4

Which is the most widely used radioactive isotope in nuclear medicine?

Accepted Answer

A) technetium-99m 
B) hydrogen-3 
C) uranium-235 
D) carbon-14 
E) plutonium-244 
A) technetium-99m 
B) hydrogen-3 
C) uranium-235 
D) carbon-14 
E) plutonium-244

Question 5

After four half-lives,the fraction of a radioactive isotope remaining is one eighth of the initial amount.

Accepted Answer

A) True 
 B)False

Question 6

What is the complete nuclear symbol for X in the equation for radioactive decay shown below? 14
6 C ? 14
7 N + X

Accepted Answer

A)  $$0$$
$- 1$ e 
B)  $\begin{array} { c } 
0 \
+ 1
\end{array}$ e 
C)  4
2 ? 
D)  $$0$$
0 ? 
E) None of the choices are correct. 
A)  $$0$$
$- 1$ e 
B)  $\begin{array} { c } 
0 \
+ 1
\end{array}$ e 
C)  4
2 ? 
D)  $$0$$
0 ? 
E) None of the choices are correct.

A radioactive sample will decay completely in two half-lives.

Which type of radiation is negatively charged?

What is the correct nuclear symbol for the unknown product "X" in the nuclear equation shown below? $238$ 92 U ? X + 4 2 He

Which is the most widely used radioactive isotope in nuclear medicine?

After four half-lives,the fraction of a radioactive isotope remaining is one eighth of the initial amount.

What is the complete nuclear symbol for X in the equation for radioactive decay shown below? 14 6 C ? 14 7 N + X

Chemistry - Methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, chemical Changes, and the Chemical Equation

States of Matter: Gases, liquids, and Solids

Solutions

Energy,rate and Equilibrium

Acids and Bases

An Introduction to Organic Chemistry

The Unsaturated Hydrocarbons: Alkenes, alkynes, and Aromatics

Alcohols, phenols, thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

Exam 9: The Nucleus, radioactivity, and Nuclear Medicine

A radioactive sample will decay completely in two half-lives.

Which type of radiation is negatively charged?

What is the correct nuclear symbol for the unknown product "X" in the nuclear equation shown below? 238238238 92 U ? X + 4 2 He

Which is the most widely used radioactive isotope in nuclear medicine?

After four half-lives,the fraction of a radioactive isotope remaining is one eighth of the initial amount.

What is the complete nuclear symbol for X in the equation for radioactive decay shown below? 14 6 C ? 14 7 N + X

Chemistry - Methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, chemical Changes, and the Chemical Equation

States of Matter: Gases, liquids, and Solids

Solutions

Energy,rate and Equilibrium

Acids and Bases

An Introduction to Organic Chemistry

The Unsaturated Hydrocarbons: Alkenes, alkynes, and Aromatics

Alcohols, phenols, thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

What is the correct nuclear symbol for the unknown product "X" in the nuclear equation shown below? $238$ 92 U ? X + 4 2 He