Deck 10: Modern Atomic Theory and the Periodic Table

Question 1

The lowest possible energy level for an electron is known as

A) ground state.
B) low state.
C) basement state.
D) excited state.

Answer 1

ground state.

Question 2

When an electron falls from one energy level to a lower energy level,the result is the emission of

A)a beta particle.
B)quantized energy.
C)a gamma particle.
D)gamma radiation.

Answer 2

quantized energy.

Question 3

How many orbitals are contained in the 2p sublevel?

A)1
B)2
C)3
D)4

Answer 3

3

Question 4

Small discrete packets of energy are known as

A)excited state energy.
B)ground state energy.
C)spectra of energy.
D)quanta of energy.

Question 5

What is the maximum number of electrons that can occupy the first principal energy level?

A)2
B)6
C)8
D)10

Question 6

Which principal energy level will contain electrons with the lowest energy?

A) First
B) Second
C) Third
D) Fourth

Question 7

What is the maximum number of electrons that can occupy an orbital?

A)1
B)2
C)3
D)4

Question 8

What is the maximum number of electrons that can occupy the 4f sublevel?

A)2
B)6
C)10
D)14

Question 9

In the fourth principal energy level,which sublevel contains electrons with the greatest energy?

A)4d
B)4f
C)4p
D)4s

Question 10

Which does not exist as an electron sublevel?

A)3d
B)3f
C)3p
D)3s

Question 11

What is the maximum number of electrons that can occupy the 4s sublevel?

A)2
B)6
C)18
D)32

Question 12

Which sublevel will contain electrons with the greatest energy?

A)3s
B)3p
C)3d
D)4s

Question 13

What is the maximum number of electrons that can occupy the 3p sublevel?

A)2
B)6
C)10
D)18

Question 14

What is the maximum number of electrons that can occupy the 3d sublevel?

A)2
B)6
C)10
D)18

Question 15

How many orbitals are contained in the 3s sublevel?

A)1
B)2
C)3
D)4

Question 16

What is the maximum number of electrons that can occupy the third principal energy level?

A)2
B)6
C)8
D)18

Question 17

The characteristic bright line spectrum of an element is produced when electron(s)

A)move to higher energy levels.
B)fall back to lower energy levels.
C)are emitted as gamma radiation.
D)are absorbed into the nucleus.

Question 18

The distance between consecutive wave peaks is known as

A)frequency.
B)wavelength .
C)amplitude.

Question 19

Which scientist developed the idea that electrons exist in specific regions at various distancesfrom the nucleus?

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

Question 20

The number of waves that pass a particular point per second is known as

A) frequency.
B) wavelength.
C) amplitude.

Question 21

On the periodic table,elements in the same period contain the same number of

A)protons.
B)electrons.
C)principal energy levels in their ground state.
D)valence electrons in their ground state.

Question 22

On the periodic table,elements in the same group contain the same number of

A)protons.
B)electrons.
C)principal energy levels in their ground state.
D)valence electrons in their ground state.

Question 23

Atoms of which element have the following electron configuration? 1s² 2s² 2p⁶ 3s¹

A)Sulfur
B)Strontium
C)Sodium
D)Nitrogen

Question 24

How many orbitals in an oxygen atom in the ground state contain only one electron?

A)1
B)2
C)3
D)4

Question 25

How many sublevels are occupied in an atom of magnesium in the ground state?

A)2
B)3
C)4
D)5

Question 26

How many valence electrons are present in the element with the following ground state electron configuration? 1s² 2s² 2p¹

A)1
B)2
C)3
D)4

Question 27

On the periodic table,the "transition elements" fill their last electrons in the _____ sublevel.

A)s
B)p
C)d
D)f

Question 28

On the periodic table,elements that behave in a similar manner are found in the same

A)series.
B)cohort.
C)group.
D)period.

Question 29

Each vertical column on the periodic table is called a

A)series.
B)period.
C)cohort.
D)group.

Question 30

How many valence electrons are in an aluminum atom in the ground state?

A)1
B)2
C)3
D)13

Question 31

How many sublevels are occupied in an atom of sulfur in the ground state?

A)2
B)3
C)4
D)5

Question 32

How many valence electrons are present in the element with the following ground state electron configuration? 1s² 2s² 2p³

A)2
B)3
C)5
D)7

Question 33

On the periodic table,the "representative elements" are found in the

A) A Groups.
B) B Groups.
C) C Groups.
D) D Groups.

Question 34

How many orbitals are contained in the 3d sublevel?

A)2
B)5
C)7
D)10

Question 35

What is the total number of electrons in the second principal energy level of a sodium atomin the ground state?

A)2
B)6
C)8
D)11

Question 36

How many orbitals in a nitrogen atom in the ground state contain only one electron?

A)1
B)2
C)3
D)4

Question 37

How many valence electrons are in a carbon atom in the ground state?

A)2
B)4
C)6
D)8

Question 38

Atoms of which element have the following electron configuration?
1s² 2s² 2p³

A)Nitrogen
B)Neon
C)Nickel
D)Niobium

Question 39

What is the total number of electrons in the second principal energy level of a nitrogen atom in the ground state?

A)2
B)3
C)5
D)7

Question 40

Each horizontal row on the periodic table is called a

A)period
B)family
C)group
D)cohort

Question 41

The number of sublevels in the third principal energy level is

A)9
B)6
C)3
D)1

Question 42

Which element is in the p-block of the periodic table?

A)Eu
B)Li
C)V
D)B

Question 43

Which is not a noble gas?

A)Ra
B)Xe
C)Ar
D)Ne

Question 44

The "alkaline earth metals" are in group

A)1A
B)2A
C)7A
D)8A

Question 45

The electron configuration,[Ar] 4s¹,is the ground state electron configuration of

A) potassium.
B) phosphorous.
C) fluorine.
D) sodium.

Question 46

Which element is a transition element?

A)K
B)Co
C)Ca
D)Kr

Question 47

All of the following are used to characterize electromagnetic radiation except

A)charge
B)frequency
C)speed
D)wavelength

Question 48

What is the number of valence electrons in an alkaline earth metal?

A)1
B)2
C)7
D)12

Question 49

The electron configuration of an atom is 1s² 2s² 2p³.The number of unpaired electrons in this atom is

A)1
B)2
C)3
D)4

Question 50

The maximum number of electrons that can fit into a single d orbital is

A)2
B)6
C)10
D)14

Question 51

What is the number of valence electrons in a halogen?

A)2
B)7
C)8
D)9

Question 52

Which of the following elements has the greatest number of unpaired electrons in its ground state electron configuration?

A)C
B)O
C)N
D)F

Question 53

The "alkali" metals are in group

A)1A
B)2A
C)7A
D)8A

Question 54

The ground state electron configuration for an atom of carbon is

A)1s² 2s²
B)1s² 2s² 2p²
C)1s² 2s² 2p⁴
D)1s² 2s⁴

Question 55

The "halogens" are in group

A)1A
B)2A
C)7A
D)8A

Question 56

The electron configuration,[Ne] 3s² 3p⁴,is the ground state electron configuration of

A)sodium.
B)neon.
C)argon.
D)sulfur.

Question 57

The ground state electron configuration for an atom of sodium is

A)1s² 2s² 2p⁶ 3s¹
B)1s² 2s²
C)1s² 2s² 2p⁶
D)1s² 2s² 2p⁶ 3s² 3p⁴

Question 58

Of the orbitals shown,the one with the lowest energy is

A)2s
B)3s
C)3d
D)3p

Question 59

Which element is in the d-block of the periodic table?

A)Cr
B)Am
C)Ca
D)As

Question 60

Which element is in the s-block of the periodic table?

A)Na
B)S
C)Pm
D)Mn

Question 61

As one descends group 2A of the periodic table,the number of valence electrons found in each element

A)increases.
B)decreases.
C)remains the same.

Question 62

The abbreviated electron configuration for arsenic is:

A)[Ar]4s²4p³
B)[Ar]4s²4d¹⁰4p³
C)[Ar]4s²3d¹⁰4p³
D)[Zn]4p³

Question 63

The following figure shows a(an):

A)d orbital
B)p orbital
C)s orbital

Question 64

The electron configuration of an atom is 1s² 2s² 2p².The number of occupied orbitals in this atom is

A)1
B)2
C)3
D)4

Question 65

In an atom of chlorine,the total number of electrons in "p-type" orbitals is:

A)3
B)6
C)5
D)11

Question 66

What is the number of orbitals in an f sublevel?

A)2
B)3
C)5
D)7

Question 67

Which principal energy level is the first to contain f orbitals?

A)Third
B)Fourth
C)Fifth
D)Sixth

Question 68

Which element has a ground state electron configuration with two unpaired electrons in the 3p sublevel?

A)P
B)Mg
C)Cl
D)Si

Question 69

Atoms of which atomic number will have similar chemical properties to sulfur?

A)Z = 15
B)Z = 8
C)Z = 35
D)Z = 32

Question 70

How many electrons are found in "s-type" orbitals in an atom of lithium?

A)2
B)1
C)3
D)0

Question 71

The element in period 5 with a full d sublevel and three unpaired electrons is:

A)In
B)Sb
C)Te
D)Y

Question 72

The following figure shows a(a):

A)d orbital
B)p orbital
C)s orbital

Question 73

Atoms of which two elements in the ground state contain the same number of valence electrons?

A)Al and Si
B)Al and B
C)Al and Zn
D)Al and Ge

Question 74

Which atom does not have an unpaired electron in its ground state electron configuration?

A)C
B)Ca
C)P
D)Cl

Question 75

What is the maximum number of electrons that can fit into the second principal energy level?

A)2
B)6
C)8
D)18

Question 76

The element with an abbreviated electron configuration [Kr]5s²4d⁶ is:

A) ruthenium
B) manganese
C) bromine
D) iron

Question 77

Choose the correct orbital diagram for arsenic.

A)
B)
C)
D)

Question 78

What is the maximum number of electrons that can fit into the fourth principal energy level?

A)18
B)14
C)24
D)32

Question 79

The line spectrum of different elements provides evidence for

A)electrons traveling in orbits around the nucleus
B)the quantization of the energy of the electrons
C)the ground-state of the atom
D)the existence of a nucleus

Question 80

The following figure shows a(an):

A)d orbital
B)p orbital
C)s orbital