Question 1

The earliest atomic theory based on an arrangement similar to the solar system is attributed to

Accepted Answer

A) Bohr 
B) Rutherford 
C) Dalton 
D) Thomson 
A) Bohr 
B) Rutherford 
C) Dalton 
D) Thomson B

Question 2

The electrons stay in orbit around the nucleus because of

Accepted Answer

A) their attraction to the protons 
B) their attraction to the neutrons 
C) their attraction to the other electrons 
D) all of the above 
A) their attraction to the protons 
B) their attraction to the neutrons 
C) their attraction to the other electrons 
D) all of the above A

Question 3

An atom of helium (⁴₂He)has

Accepted Answer

A) two protons 
B) four protons 
C) four neutrons 
D) four electrons 
A) two protons 
B) four protons 
C) four neutrons 
D) four electrons A

Question 4

The number of protons and neutrons in the atom's nucleus is the

Accepted Answer

A) atomic number 
B) atomic mass number 
C) element 
D) compound 
A) atomic number 
B) atomic mass number 
C) element 
D) compound

Question 5

In a neutral atom,the atomic number indicates the number of

Accepted Answer

A) protons 
B) neutrons 
C) electrons 
D) A and B 
E) A and C 
A) protons 
B) neutrons 
C) electrons 
D) A and B 
E) A and C

Question 6

The periodic table of elements classifies by period and group.The period is the

Accepted Answer

A) row 
B) column 
C) group 
D) type of element 
A) row 
B) column 
C) group 
D) type of element

Question 7

All compounds are molecules and all molecules are compounds.

Accepted Answer

A) True 
 B)False

Question 8

Atoms with different atomic numbers but the same atomic mass numbers are

Accepted Answer

A) isotopes 
B) isotones 
C) isobars 
D) isomers 
A) isotopes 
B) isotones 
C) isobars 
D) isomers

Question 9

The fundamental component of the atom that has the smallest mass is the

Accepted Answer

A) electron 
B) neutron 
C) proton 
D) none of the above 
A) electron 
B) neutron 
C) proton 
D) none of the above

Question 10

If an atom has 15 electrons,which will be the outermost shell?

Accepted Answer

A) "L" 
B) "M" 
C) "N" 
D) "O" 
A) "L" 
B) "M" 
C) "N" 
D) "O"

Question 11

How many neutrons does ⁷₃Li (lithium)have?

Accepted Answer

A) 3 
B) 4 
C) 7 
D) 10 
A) 3 
B) 4 
C) 7 
D) 10

Question 12

How many electrons does a neutral atom of carbon (¹²₆C)have?

Accepted Answer

A) 3 
B) 6 
C) 12 
D) 18 
A) 3 
B) 6 
C) 12 
D) 18

Question 13

If an atom has the same number of electrons and protons it will

Accepted Answer

A) have a negative charge 
B) have a positive charge 
C) be electrically neutral 
D) none of the above 
A) have a negative charge 
B) have a positive charge 
C) be electrically neutral 
D) none of the above

Question 14

A positive ion is

Accepted Answer

A) a proton 
B) an atom with more protons than electrons 
C) an atom with more neutrons that electrons 
D) an atom with more electrons than protons 
A) a proton 
B) an atom with more protons than electrons 
C) an atom with more neutrons that electrons 
D) an atom with more electrons than protons

Question 15

An atom of oxygen (¹⁶₈O)has

Accepted Answer

A) eight protons 
B) eight neutrons 
C) eight electrons 
D) all of the above 
A) eight protons 
B) eight neutrons 
C) eight electrons 
D) all of the above

Question 16

When the bond between two atoms is due to one atom giving up an electron and the other atom gaining an electron,it is called a

Accepted Answer

A) molecular bond 
B) ionic bond 
C) compounding bond 
D) covalent bond 
A) molecular bond 
B) ionic bond 
C) compounding bond 
D) covalent bond

Question 17

The most commonly known modern atomic theory was developed by

Accepted Answer

A) Bohr 
B) Rutherford 
C) Dalton 
D) Thomson 
A) Bohr 
B) Rutherford 
C) Dalton 
D) Thomson

Question 18

In the early 1800s English chemist John Dalton theorized that

Accepted Answer

A) elements form compounds 
B) atoms are unique to each element in size and mass 
C) a chemical reaction results from atoms being rearranged 
D) all of the above 
A) elements form compounds 
B) atoms are unique to each element in size and mass 
C) a chemical reaction results from atoms being rearranged 
D) all of the above

Question 19

When an atom becomes negatively or positively charged it is usually due to a change in the number of

Accepted Answer

A) protons 
B) electrons 
C) neutrons 
D) all of the above 
A) protons 
B) electrons 
C) neutrons 
D) all of the above

Question 20

Atoms with different number of protons but the same combined number of protons and neutrons are

Accepted Answer

A) isotopes 
B) isotones 
C) isobars 
D) isomers 
A) isotopes 
B) isotones 
C) isobars 
D) isomers

The earliest atomic theory based on an arrangement similar to the solar system is attributed to

The electrons stay in orbit around the nucleus because of

An atom of helium (⁴₂He)has

The number of protons and neutrons in the atom's nucleus is the

In a neutral atom,the atomic number indicates the number of

The periodic table of elements classifies by period and group.The period is the

All compounds are molecules and all molecules are compounds.

Atoms with different atomic numbers but the same atomic mass numbers are

The fundamental component of the atom that has the smallest mass is the

If an atom has 15 electrons,which will be the outermost shell?

How many neutrons does ⁷₃Li (lithium)have?

How many electrons does a neutral atom of carbon (¹²₆C)have?

If an atom has the same number of electrons and protons it will

A positive ion is

An atom of oxygen (¹⁶₈O)has

When the bond between two atoms is due to one atom giving up an electron and the other atom gaining an electron,it is called a

The most commonly known modern atomic theory was developed by

In the early 1800s English chemist John Dalton theorized that

When an atom becomes negatively or positively charged it is usually due to a change in the number of

Atoms with different number of protons but the same combined number of protons and neutrons are

Introduction to the Imaging Sciences

Electromagnetic and Particulate Radiation

The X-Ray Circuit

The X-Ray Tube

X-Ray Production

X-Ray Interactions With Matter

Image Production

Image Quality and Characteristics

Radiographic Exposure Technique

Scatter Control

Image Receptors

Exposure Technique Selection

Image Intensified Fluoroscopy

Additional Equipment

Computed Tomography

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Exam 2: Structure of the Atom

The earliest atomic theory based on an arrangement similar to the solar system is attributed to

The electrons stay in orbit around the nucleus because of

An atom of helium (⁴₂He)has

The number of protons and neutrons in the atom's nucleus is the

In a neutral atom,the atomic number indicates the number of

The periodic table of elements classifies by period and group.The period is the

All compounds are molecules and all molecules are compounds.

Atoms with different atomic numbers but the same atomic mass numbers are

The fundamental component of the atom that has the smallest mass is the

If an atom has 15 electrons,which will be the outermost shell?

How many neutrons does ⁷₃Li (lithium)have?

How many electrons does a neutral atom of carbon (¹²₆C)have?

If an atom has the same number of electrons and protons it will

A positive ion is

An atom of oxygen (¹⁶₈O)has

When the bond between two atoms is due to one atom giving up an electron and the other atom gaining an electron,it is called a

The most commonly known modern atomic theory was developed by

In the early 1800s English chemist John Dalton theorized that

When an atom becomes negatively or positively charged it is usually due to a change in the number of

Atoms with different number of protons but the same combined number of protons and neutrons are

Introduction to the Imaging Sciences

Electromagnetic and Particulate Radiation

The X-Ray Circuit

The X-Ray Tube

X-Ray Production

X-Ray Interactions With Matter

Image Production

Image Quality and Characteristics

Radiographic Exposure Technique

Scatter Control

Image Receptors

Exposure Technique Selection

Image Intensified Fluoroscopy

Additional Equipment

Computed Tomography

Filters