Question 1

The number of electron levels in a magnesium atom is

Accepted Answer

A)  1.
B)  2.
C)  3.
D)  4.
E)  5.F) C) and E)
G) D) and E)

Question 2

What is the abbreviated electron configuration for nickel (atomic number 28) ?

Accepted Answer

A)   
B)   
C)   
D)   
E)    F) A) and B)
G) C) and D)

Question 3

Ionization energy is

Accepted Answer

A)  the energy an ion acquires from an electron.
B)  higher for potassium than for lithium.
C)  highest for metals in Group 1A (1) .
D)  the energy needed to remove an electron from the outermost energy level.
E)  higher for chlorine than for fluorine.F) A) and B)
G) C) and D)

Question 4

Ca is the symbol for

Accepted Answer

A)  cadmium.
B)  copper.
C)  cobalt.
D)  calcium.
E)  carbon.F) D) and E)
G) A) and B)

Question 5

Isotopes are atoms of the same element that have

Accepted Answer

A)  the same atomic numbers but different numbers of electrons.
B)  the same atomic number but different numbers of neutrons.
C)  the same atomic mass but different numbers of protons.
D)  the same atomic numbers but different numbers of protons.
E)  different atomic numbers.F) A) and C)
G) A) and D)

Question 6

Which of the following gives the correct numbers of protons, neutrons, and electrons, respectively, in a neutral atom of 11850 Sn?

Accepted Answer

A)  68 protons, 68 neutrons, 50 electrons
B)  118 protons, 50 neutrons, 118 electrons
C)  118 protons, 118 neutrons, 50 electrons
D)  50 protons, 50 neutrons, 50 electrons
E)  50 protons, 68 neutrons, 50 electronsF) None of the above
G) A) and B)

Question 7

Which of the following properties is NOT a characteristic of the Group 1A (1) elements (alkali metals) ?

Accepted Answer

A)  They are shiny.
B)  They react vigorously with water.
C)  They are good conductors of heat.
D)  They are good conductors of electricity.
E)  Most of them are liquids at room temperature.F) B) and C)
G) C) and E)

Question 8

Consider a neutral atom with 30 protons and 34 neutrons. The mass number for this atom is

Accepted Answer

A)  30.
B)  32.
C)  34.
D)  64.
E)  94.F) All of the above
G) B) and D)

Question 9

What is the element with the abbreviated electron configuration

Accepted Answer

A)  Pd
B)  Kr
C)  Pt
D)  Xe
E)  NiF) A) and D)
G) A) and E)

Question 10

Valence electrons are electrons located

Accepted Answer

A)  throughout the atom.
B)  in the first three energy levels of an atom.
C)  in the innermost energy level of an atom.
D)  in the nucleus of an atom.
E)  in the outermost energy level of an atom.F) None of the above
G) A) and C)

Question 11

Which of the following electron configurations is impossible?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) C) and D)
G) B) and D)

Question 12

What is the symbol of the element in Period 4 and Group 2 A (2) ?

Accepted Answer

A)  Mg
B)  Be
C)  Si
D)  C
E)  CaF) All of the above
G) None of the above

Question 13

Which of the following elements is a noble gas?

Accepted Answer

A)  chlorine
B)  argon
C)  oxygen
D)  nitrogen
E)  bromineF) B) and D)
G) B) and C)

Question 14

Consider a neutral atom with 30 protons and 34 neutrons. The number of electrons in this atom is

Accepted Answer

A)  30.
B)  32.
C)  34.
D)  64.
E)  94.F) B) and C)
G) A) and E)

Question 15

The primary substances of which all other things are composed are

Accepted Answer

A)  protons.
B)  compounds.
C)  electrons.
D)  molecules.
E)  elements.F) B) and C)
G) C) and D)

Question 16

Accepted Answer

A)  carbon, phosphorus, oxygen, helium
B)  carbon, potassium, oxygen, helium
C)  calcium, phosphorus, oxygen, hydrogen
D)  carbon, potassium, oxygen, hydrogen
E)  calcium, phosphorus, oxygen, heliumF) A) and B)
G) B) and D)

Question 17

Select the correct symbol for the element.
-iron

Accepted Answer

A)  Ir
B)  In
C)  Fs
D)  Fe
E)  FEF) A) and B)
G) All of the above

Question 18

The number of neutrons in an atom is equal to

Accepted Answer

A)  the mass number + the atomic number.
B)  the atomic number.
C)  the number of protons.
D)  the mass number.
E)  the mass number - the atomic number.F) A) and B)
G) C) and E)

Question 19

What is the symbol of the element in Group 4A (14) and Period 2?

Accepted Answer

A)  Ca
B)  C
C)  Si
D)  Be
E)  MgF) C) and E)
G) B) and D)

Question 20

Of the elements: B, C, F, Li, and Na, the element with the largest atomic radius is

Accepted Answer

A)  B.
B)  C.
C)  F.
D)  Li.
E)  Na.F) None of the above
G) A) and C)

Exam 4: Atoms and Elements

Which of the following properties is NOT a characteristic of the Group 1A (1) elements (alkali metals) ?

Correct Answer
verified

Consider a neutral atom with 30 protons and 34 neutrons. The mass number for this atom is

Correct Answer
verified

Isotopes are atoms of the same element that have

Correct Answer
verified

Consider a neutral atom with 30 protons and 34 neutrons. The number of electrons in this atom is

Correct Answer
verified

Correct Answer
verified

What is the symbol of the element in Period 4 and Group 2 A (2) ?

Correct Answer
verified

Valence electrons are electrons located

Correct Answer
verified

What is the abbreviated electron configuration for nickel (atomic number 28) ?

Correct Answer
verified

Which of the following electron configurations is impossible?

Correct Answer
verified

Select the correct symbol for the element. -iron

Correct Answer
verified

Ionization energy is

Correct Answer
verified

Which of the following gives the correct numbers of protons, neutrons, and electrons, respectively, in a neutral atom of 11850 Sn?

Correct Answer
verified

The primary substances of which all other things are composed are

Correct Answer
verified

The number of electron levels in a magnesium atom is

Correct Answer
verified

Which of the following elements is a noble gas?

Correct Answer
verified

What is the symbol of the element in Group 4A (14) and Period 2?

Correct Answer
verified

Ca is the symbol for

Correct Answer
verified

What is the element with the abbreviated electron configuration

Correct Answer
verified

The number of neutrons in an atom is equal to

Correct Answer
verified

Of the elements: B, C, F, Li, and Na, the element with the largest atomic radius is

Correct Answer
verified

Exam 4: Atoms and Elements

Which of the following properties is NOT a characteristic of the Group 1A (1) elements (alkali metals) ?

Correct AnswerverifiedShow Answer

Consider a neutral atom with 30 protons and 34 neutrons. The mass number for this atom is

Correct AnswerverifiedShow Answer

Isotopes are atoms of the same element that have

Correct AnswerverifiedShow Answer

Consider a neutral atom with 30 protons and 34 neutrons. The number of electrons in this atom is

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

What is the symbol of the element in Period 4 and Group 2 A (2) ?

Correct AnswerverifiedShow Answer

Valence electrons are electrons located

Correct AnswerverifiedShow Answer

What is the abbreviated electron configuration for nickel (atomic number 28) ?

Correct AnswerverifiedShow Answer

Which of the following electron configurations is impossible?

Correct AnswerverifiedShow Answer

Select the correct symbol for the element. -iron

Correct AnswerverifiedShow Answer

Ionization energy is

Correct AnswerverifiedShow Answer

Which of the following gives the correct numbers of protons, neutrons, and electrons, respectively, in a neutral atom of 11850 Sn?

Correct AnswerverifiedShow Answer

The primary substances of which all other things are composed are

Correct AnswerverifiedShow Answer

The number of electron levels in a magnesium atom is

Correct AnswerverifiedShow Answer

Which of the following elements is a noble gas?

Correct AnswerverifiedShow Answer

What is the symbol of the element in Group 4A (14) and Period 2?

Correct AnswerverifiedShow Answer

Ca is the symbol for

Correct AnswerverifiedShow Answer

What is the element with the abbreviated electron configuration

Correct AnswerverifiedShow Answer

The number of neutrons in an atom is equal to

Correct AnswerverifiedShow Answer

Of the elements: B, C, F, Li, and Na, the element with the largest atomic radius is

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified