Question 1

Complete the following table:

Accepted Answer

The answer of Complete the following table:
  ...

Question 2

The isotope of hydrogen that is a radioisotope has a mass number of 3.

Accepted Answer

A) True 
 B)False  True

Question 3

How many carbon(C) atoms are present in 30 moles of carbon?

Accepted Answer

A)  1.20 x 101C atoms 
B)  1.80 x 1023 C atoms 
C)  3.60 x 102 C atoms 
D)  6.02 x 1023 C atoms 
A)  1.20 x 101C atoms 
B)  1.80 x 1023 C atoms 
C)  3.60 x 102 C atoms 
D)  6.02 x 1023 C atoms B

Question 4

Scandium-40 enters into a reaction in which a positron is emitted. Which is the correct equation for this reaction?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 5

Which is the proper notation for the oxygen isotope with atomic number 8 and a mass number of 16?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 6

Define the term mole. Explain the relationship between mole and atomic weight.

Accepted Answer

A mole is a counting unit that

Question 7

The dosage unit related to the amount of energy absorbed by an object exposed to nuclear radiation is ___.

Accepted Answer

A)  curie 
B)  rad 
C)  rem 
D)  Becquerel 
A)  curie 
B)  rad 
C)  rem 
D)  Becquerel

Question 8

What is the mass in grams of 5.82 x 1015 moles of Ba?

Accepted Answer

Question 9

The least penetrating form of ionizing radiation is the ___ particle.

Accepted Answer

The answer of The least penetrating form of ionizing radiation...

Question 10

Complete the following table:

Accepted Answer

The answer of Complete the following table:
  ...

Question 11

Which of the following is an isotope of iodine-131?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 12

Given the following elements: calcium, selenium, and chlorine,arrange the three elements in order of:
increasing atomic size: __________>_____

Accepted Answer

increasing atomic si

Question 13

Where are the metals located on the periodic table of the elements?

Accepted Answer

A)  On the right side of the metalloid line (not including the metalloids). 
B)  On the last group of the periodic table. 
C)  On the left side of the metalloid line (not including the methalloids). 
D)  In the two sections separated from the rest of the table. 
A)  On the right side of the metalloid line (not including the metalloids). 
B)  On the last group of the periodic table. 
C)  On the left side of the metalloid line (not including the methalloids). 
D)  In the two sections separated from the rest of the table.

Question 14

When a radioactive isotope emits a(n)___, its atomic number increases.

Accepted Answer

A)  alpha particle 
B)  beta particle 
C)  gamma ray 
D)  positron 
A)  alpha particle 
B)  beta particle 
C)  gamma ray 
D)  positron

Question 15

Write the nuclear equation for the alpha emission of bismuth-210.

Accepted Answer

The answer of Write the nuclear equation for the alpha...

Question 16

The mass in grams of one mole of an element is the element's ___.

Accepted Answer

A)  atomic number 
B)  atomic weight 
C)  molar mass 
D)  isotope number 
A)  atomic number 
B)  atomic weight 
C)  molar mass 
D)  isotope number

Question 17

Technetium-99 is injected into a patient in order to monitor heart function. Technetium-99 is a gamma emitter with a half-life of 6 hours. A patient receives an injection of 21 mg of Technetium-99 on a Tuesday at 9:00 a.m.
Calculate the number of hours and the number of half-lives that occur between 9:00 a.m. on Tuesday and 11:00 p.m. on Wednesday.

Accepted Answer

38 hours=

Question 18

The periodic table of the elements does not list whole numbers for atomic weights. Why?

Accepted Answer

A)  The atomic weights are not predictable. 
B)  The atomic weights include protons and neutrons at 1 amu each, but they also include electrons, which weigh a lot less than one. 
C)  The atomic weight is the weighted average of the masses of the known isotopes of an element. 
D)  The atomic weights do not include isotopes. 
A)  The atomic weights are not predictable. 
B)  The atomic weights include protons and neutrons at 1 amu each, but they also include electrons, which weigh a lot less than one. 
C)  The atomic weight is the weighted average of the masses of the known isotopes of an element. 
D)  The atomic weights do not include isotopes.

Question 19

Radioisotopes with short half-lives are used in diagnostic tests because

Accepted Answer

A)  they have high energy. 
B)  they are inexpensive. 
C)  they do not pose health risks by being present long after use. 
D)  they have less penetration ability. 
A)  they have high energy. 
B)  they are inexpensive. 
C)  they do not pose health risks by being present long after use. 
D)  they have less penetration ability.

Question 20

In a living thing, light can be produced without heat in a process called ___.

Accepted Answer

The answer of In a living thing, light can be...

Complete the following table:

The isotope of hydrogen that is a radioisotope has a mass number of 3.

How many carbon(C) atoms are present in 30 moles of carbon?

Scandium-40 enters into a reaction in which a positron is emitted. Which is the correct equation for this reaction?

Which is the proper notation for the oxygen isotope with atomic number 8 and a mass number of 16?

Define the term mole. Explain the relationship between mole and atomic weight.

The dosage unit related to the amount of energy absorbed by an object exposed to nuclear radiation is ___.

What is the mass in grams of 5.82 x 10¹⁵moles of Ba?

The least penetrating form of ionizing radiation is the ___ particle.

Complete the following table:

Which of the following is an isotope of iodine-131?

Given the following elements: calcium, selenium, and chlorine,arrange the three elements in order of: increasing atomic size: ___<_<_ increasing metallic character _>_>___

Where are the metals located on the periodic table of the elements?

When a radioactive isotope emits a(n)___, its atomic number increases.

Write the nuclear equation for the alpha emission of bismuth-210.

The mass in grams of one mole of an element is the element's ___.

The periodic table of the elements does not list whole numbers for atomic weights. Why?

Radioisotopes with short half-lives are used in diagnostic tests because

In a living thing, light can be produced without heat in a process called ___.

Science and Measurements

Compounds

An Introduction to Organic Compounds

Reactions

Gases, Solutions, Colloids, and Suspensions

Acids, Bases, and Equilibrium

Organic Reactions Hydrocarbons, Carboxlic Acids, Amines, and Related Compounds

Organic Reactions 2-Alcohols, Ethers, Aldehydes, and Ketones

Carbohydrates

Lipids and Membranes

Peptides, Proteins, and Enzymes

Nucleic Acids

Metabolism

Filters

Exam 2: Atoms and Elements

Complete the following table:

The isotope of hydrogen that is a radioisotope has a mass number of 3.

How many carbon(C) atoms are present in 30 moles of carbon?

Scandium-40 enters into a reaction in which a positron is emitted. Which is the correct equation for this reaction?

Which is the proper notation for the oxygen isotope with atomic number 8 and a mass number of 16?

Define the term mole. Explain the relationship between mole and atomic weight.

The dosage unit related to the amount of energy absorbed by an object exposed to nuclear radiation is ___.

What is the mass in grams of 5.82 x 1015 moles of Ba?

The least penetrating form of ionizing radiation is the ___ particle.

Complete the following table:

Which of the following is an isotope of iodine-131?

Given the following elements: calcium, selenium, and chlorine,arrange the three elements in order of: increasing atomic size: _____<_____<_____ increasing metallic character _____>_____>_____

Where are the metals located on the periodic table of the elements?

When a radioactive isotope emits a(n)___, its atomic number increases.

Write the nuclear equation for the alpha emission of bismuth-210.

The mass in grams of one mole of an element is the element's ___.

The periodic table of the elements does not list whole numbers for atomic weights. Why?

Radioisotopes with short half-lives are used in diagnostic tests because

In a living thing, light can be produced without heat in a process called ___.

Science and Measurements

Compounds

An Introduction to Organic Compounds

Reactions

Gases, Solutions, Colloids, and Suspensions

Acids, Bases, and Equilibrium

Organic Reactions Hydrocarbons, Carboxlic Acids, Amines, and Related Compounds

Organic Reactions 2-Alcohols, Ethers, Aldehydes, and Ketones

Carbohydrates

Lipids and Membranes

Peptides, Proteins, and Enzymes

Nucleic Acids

Metabolism

Filters

What is the mass in grams of 5.82 x 10¹⁵moles of Ba?

Given the following elements: calcium, selenium, and chlorine,arrange the three elements in order of: increasing atomic size: ___<_<_ increasing metallic character _>_>___