Question 1

How many protons does Protactinium have?

Accepted Answer

A)  34 
B)  38 
C)  71 
D)  11 
E)  91 
A)  34 
B)  38 
C)  71 
D)  11 
E)  91

Question 2

The average mass of the atoms of an element in naturally occurring samples is called the ______________ mass of the element.

Accepted Answer

A)  atomic 
B)  average 
C)  relative 
D)  molecular 
A)  atomic 
B)  average 
C)  relative 
D)  molecular

Question 3

When the number of protons in a nucleus exceeds ______________, the nucleus is unstable.

Accepted Answer

A)  65 
B)  56 
C)  83 
D)  103 
A)  65 
B)  56 
C)  83 
D)  103

Question 4

The common unit of radiation absorbed dosage is the ______________.

Accepted Answer

rem (or ro

Question 5

Determine the atomic mass of a hypothetical element that occurs on Earth as a mixture of 30.00% 44X (atomic mass of isotope = 44.00 u) and 70.00% 46X (atomic mass of isotope = 46.00 u).

Accepted Answer

Question 6

After 8.0 years have elapsed, 15/16 of a sample of a specific radionuclide has decayed. What is the half-life of the radionuclide?

Accepted Answer

The answer of After 8.0 years have elapsed, 15/16 of...

Question 7

Complete the equation:    
______________

Accepted Answer

Question 8

After seven half-lives have elapsed, what fraction of the original amount of radionuclide remains?

Accepted Answer

A)  1/7 
B)  1/14 
C)  1/128 
D)  None of these 
A)  1/7 
B)  1/14 
C)  1/128 
D)  None of these

Question 9

When an unstable Lu nucleus undergoes alpha decay, the nucleus formed is that of

Accepted Answer

A)  Lutetium. 
B)  Tantalum. 
C)  Ytterbium. 
D)  Thulium. 
E)  Hafnium. 
A)  Lutetium. 
B)  Tantalum. 
C)  Ytterbium. 
D)  Thulium. 
E)  Hafnium.

Question 10

Breeder reactors

Accepted Answer

A)  produce plutonium from 238U. 
B)  use 238U as a fuel. 
C)  produce 235U from 238U. 
D)  produce 238U from 235U. 
A)  produce plutonium from 238U. 
B)  use 238U as a fuel. 
C)  produce 235U from 238U. 
D)  produce 238U from 235U.

Question 11

The central core of the atom is called the ______________.

Accepted Answer

The answer of The central core of the atom is...

Question 12

Complete the equation:    
*
     
______________

Accepted Answer

The answer of Complete the equation:    
*
...

Question 13

Complete the equation.     
_____________

Accepted Answer

Question 14

What is the symbol for the element whose atoms have 40 electrons each?

Accepted Answer

A)  Ge 
B)  Zr 
C)  Ar 
D)  None of these 
A)  Ge 
B)  Zr 
C)  Ar 
D)  None of these

Question 15

If the bombardment of a   nucleus with an alpha particle produces a deuteron, the other product is

Accepted Answer

A)    
B)    
C)    
D)  none of these. 
A)    
B)    
C)    
D)  none of these.

Question 16

Which one of the following isotopes of gallium would you expect to be radioactive? Explain your choice.

Accepted Answer

jpg has an odd numb

Question 17

An amount of fissionable material that will not sustain a chain reaction is called

Accepted Answer

A)  a subatomic mass. 
B)  a subisotopic mass. 
C)  a subcritical mass. 
D)  none of these. 
A)  a subatomic mass. 
B)  a subisotopic mass. 
C)  a subcritical mass. 
D)  none of these.

Question 18

What happens to the atomic number (Z) and the mass number (A) when a nucleus emits an alpha particle?

Accepted Answer

A)  Z increases by 1; A is unchanged. 
B)  Z is unchanged; A is unchanged. 
C)  Z decreases by 2; A decreases by 4. 
D)  Z decreases by 1; A is unchanged. 
A)  Z increases by 1; A is unchanged. 
B)  Z is unchanged; A is unchanged. 
C)  Z decreases by 2; A decreases by 4. 
D)  Z decreases by 1; A is unchanged.

Question 19

What happens to the atomic number (Z) and the mass number (A) when a nucleus emits a beta particle (electron)?

Accepted Answer

A)  Z increases by 1; A is unchanged. 
B)  Z is unchanged; A is unchanged. 
C)  Z decreases by 2; A decreases by 4. 
D)  Z decreases by 1; A is unchanged. 
A)  Z increases by 1; A is unchanged. 
B)  Z is unchanged; A is unchanged. 
C)  Z decreases by 2; A decreases by 4. 
D)  Z decreases by 1; A is unchanged.

Question 20

The smallest amount of a fissionable material that will give a self-sustaining chain reaction is called the

Accepted Answer

A)  mass defect. 
B)  mass number. 
C)  atomic mass. 
D)  critical mass. 
A)  mass defect. 
B)  mass number. 
C)  atomic mass. 
D)  critical mass.

How many protons does Protactinium have?

The average mass of the atoms of an element in naturally occurring samples is called the ______________ mass of the element.

When the number of protons in a nucleus exceeds ______________, the nucleus is unstable.

The common unit of radiation absorbed dosage is the ______________.

Determine the atomic mass of a hypothetical element that occurs on Earth as a mixture of 30.00% ⁴⁴X (atomic mass of isotope = 44.00 u) and 70.00% ⁴⁶X (atomic mass of isotope = 46.00 u).

After 8.0 years have elapsed, 15/16 of a sample of a specific radionuclide has decayed. What is the half-life of the radionuclide?

Complete the equation: ______________

After seven half-lives have elapsed, what fraction of the original amount of radionuclide remains?

When an unstable Lu nucleus undergoes alpha decay, the nucleus formed is that of

Breeder reactors

The central core of the atom is called the ______________.

Complete the equation: ^* ______________

Complete the equation. _____________

What is the symbol for the element whose atoms have 40 electrons each?

If the bombardment of a nucleus with an alpha particle produces a deuteron, the other product is

Which one of the following isotopes of gallium would you expect to be radioactive? Explain your choice.

An amount of fissionable material that will not sustain a chain reaction is called

What happens to the atomic number (Z) and the mass number (A) when a nucleus emits an alpha particle?

What happens to the atomic number (Z) and the mass number (A) when a nucleus emits a beta particle (electron)?

The smallest amount of a fissionable material that will give a self-sustaining chain reaction is called the

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Exam 10: Organic Chemistry

How many protons does Protactinium have?

The average mass of the atoms of an element in naturally occurring samples is called the ______________ mass of the element.

When the number of protons in a nucleus exceeds ______________, the nucleus is unstable.

The common unit of radiation absorbed dosage is the ______________.

Determine the atomic mass of a hypothetical element that occurs on Earth as a mixture of 30.00% 44X (atomic mass of isotope = 44.00 u) and 70.00% 46X (atomic mass of isotope = 46.00 u).

After 8.0 years have elapsed, 15/16 of a sample of a specific radionuclide has decayed. What is the half-life of the radionuclide?

Complete the equation: ______________

After seven half-lives have elapsed, what fraction of the original amount of radionuclide remains?

When an unstable Lu nucleus undergoes alpha decay, the nucleus formed is that of

Breeder reactors

The central core of the atom is called the ______________.

Complete the equation: * ______________

Complete the equation. _____________

What is the symbol for the element whose atoms have 40 electrons each?

If the bombardment of a nucleus with an alpha particle produces a deuteron, the other product is

Which one of the following isotopes of gallium would you expect to be radioactive? Explain your choice.

An amount of fissionable material that will not sustain a chain reaction is called

What happens to the atomic number (Z) and the mass number (A) when a nucleus emits an alpha particle?

What happens to the atomic number (Z) and the mass number (A) when a nucleus emits a beta particle (electron)?

The smallest amount of a fissionable material that will give a self-sustaining chain reaction is called the

Temperature and Heat

Waves and Sound

Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

Nuclear Physics

The Chemical Elements

Chemical Bonding

Chemical Reactions

Place and Time

The Solar System

Moons and Small Solar System Bodies

The Universe

The Atmosphere

Atmospheric Effects

Structural Geology and Plate Tectonics

Minerals Rocks and Volcanoes

Surface Processes

Geologic Time

Filters

Determine the atomic mass of a hypothetical element that occurs on Earth as a mixture of 30.00% ⁴⁴X (atomic mass of isotope = 44.00 u) and 70.00% ⁴⁶X (atomic mass of isotope = 46.00 u).

Complete the equation: ^* ______________