Question 1

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. 
A) B. 
B) C. 
C) F. 
D) Li. 
E) Na.

Question 2

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 electrons 
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 electrons

Question 3

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) Ca 
A) Mg 
B) Be 
C) Si 
D) C 
E) Ca

Question 4

Select the correct symbol for the element.
-iron

Accepted Answer

A) Ir 
B) In 
C) Fs 
D) Fe 
E) FE 
A) Ir 
B) In 
C) Fs 
D) Fe 
E) FE

Question 5

The primary substances of which all other things are composed are

Accepted Answer

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

Question 6

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

Question 7

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) Mg 
A) Ca 
B) C 
C) Si 
D) Be 
E) Mg

Question 8

Ca is the symbol for

Accepted Answer

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

Question 9

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. 
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.

Question 10

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. 
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.

Question 11

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

Accepted Answer

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

Question 12

Which of the following electron configurations is impossible?

Accepted Answer

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

Question 13

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

Question 14

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. 
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.

Question 15

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. 
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.

Question 16

Which of the following elements is a noble gas?

Accepted Answer

A) chlorine 
B) argon 
C) oxygen 
D) nitrogen 
E) bromine 
A) chlorine 
B) argon 
C) oxygen 
D) nitrogen 
E) bromine

Question 17

The number of electron levels in a magnesium atom is

Accepted Answer

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

Question 18

What is the element with the abbreviated electron configuration

Accepted Answer

A) Pd 
B) Kr 
C) Pt 
D) Xe 
E) Ni 
A) Pd 
B) Kr 
C) Pt 
D) Xe 
E) Ni

Question 19

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. 
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.

Question 20

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

Exam 4: Atoms and Elements

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

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

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

Select the correct symbol for the element. -iron

The primary substances of which all other things are composed are

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

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

Ca is the symbol for

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

Ionization energy is

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

Which of the following electron configurations is impossible?

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

Isotopes are atoms of the same element that have

The number of neutrons in an atom is equal to

Which of the following elements is a noble gas?

The number of electron levels in a magnesium atom is

What is the element with the abbreviated electron configuration

Valence electrons are electrons located

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