Deck 2: Atoms and the Periodic Table

Question 1

The smallest amount of an element that retains that element's characteristics is the

A)atom.
B)electron.
C)molecule.
D)neutron.
E)proton.

Answer 1

atom.

Question 2

An atom containing 47 protons,47 electrons,and 60 neutrons has a mass number of

A)13.
B)47.
C)60.
D)107.
E)154.

Answer 2

107.

Question 3

In a neutral atom the number of ________ is equal to the number of ________.

A)protons;electrons
B)protons;neutrons
C)neutrons;electrons
D)protons + electrons;neutrons
E)none of the above

Answer 3

protons;electrons

Question 4

Which characteristics correctly describe an electron?

A)approximate mass 1 amu;charge +1;inside nucleus
B)approximate mass 1 amu;charge -1;inside nucleus
C)approximate mass 1 amu;charge 0;inside nucleus
D)approximate mass 5 × 10^-4 amu;charge 0;inside nucleus
E)approximate mass 5 × 10^-4 amu;charge -1;outside nucleus

Question 5

The atomic number of an atom containing 29 protons,29 electrons,and 34 neutrons is

A)5.
B)29.
C)34.
D)58.
E)63.

Question 6

Which characteristics correctly describe a neutron?

A)approximate mass 1 amu;charge +1;inside nucleus
B)approximate mass 1 amu;charge -1;inside nucleus
C)approximate mass 1 amu;charge 0;inside nucleus
D)approximate mass 5 × 10^-4 amu;charge 0;inside nucleus
E)approximate mass 5 × 10^-4 amu;charge -1;outside nucleus

Question 7

Another name for atomic mass unit (amu)is the

A)avogadro.
B)dalton.
C)Kekule
D)kelvin.
E)mendeleev.

Question 8

Which characteristics correctly describe a proton?

A)approximate mass 1 amu;charge +1;inside nucleus
B)approximate mass 5 × 10^-4 amu;charge -1;outside nucleus
C)approximate mass 5 × 10^-4 amu;charge +1;inside nucleus
D)approximate mass 1 amu;charge 0;inside nucleus
E)approximate mass 1 amu;charge +1;outside nucleus

Question 9

The mass number of Bromine-81 is

A)81.
B)79.904.
C)79.
D)46.
E)35.

Question 10

Which particle has a mass approximately equal to the mass of a proton?

A)atom
B)electron
C)neutron
D)nucleus
E)quark

Question 11

Which statement is incorrect according to modern atomic theory?

A)Some sugars have the formula C_3.5H₇O_3.5.
B)An atom of ¹⁴N has the same approximate mass as an atom of ¹⁴C.
C)An atom of ¹⁴N behaves differently in chemical reactions than an atom of ¹⁴C.
D)An example of a chemical reaction is CaCO₃ → CaO + CO₂.
E)C₂H₆ and C₃H₈ are both possible compounds of carbon and hydrogen.

Question 12

Protons possess a ________ charge,and electrons possess a ________ charge.

A)negative;negative
B)negative;positive
C)positive;negative
D)positive;zero
E)zero;positive

Question 13

An atom with Z = 26 and A = 58 contains ________ protons and ________ neutrons.

A)26;58
B)58;26
C)26;32
D)32;26
E)26;84

Question 14

How many neutrons does an atom of Ti have?

A)0
B)22
C)24
D)46
E)68

Question 15

Where is most of the mass of an atom concentrated?

A)electrons
B)neutrons
C)nucleus
D)orbitals
E)protons

Question 16

The value of Z for the element ³⁷Ar is

A)37.
B)39.945.
C)19.
D)21.945.
E)18.

Question 17

The value of Z for an atom containing 47 protons,47 electrons,and 60 neutrons is

A)13.
B)47.
C)60.
D)107.
E)154.

Question 18

For the isotope ⁷¹Ga,Z = ________ and A = ________.

A)31;40
B)71;31
C)71;40
D)31;71
E)31;69.723

Question 19

Protons possess a ________ charge,and neutrons possess a ________ charge.

A)negative;negative
B)negative;positive
C)positive;negative
D)positive;zero
E)zero;positive

Question 20

An atom with Z = 35 and A = 80 contains ________ protons,________ electrons,and ________ neutrons.

A)35;35;80
B)80;35;35
C)35;35;45
D)45;80;45
E)45;80;35

Question 21

The value of A for an atom containing 29 protons,29 electrons,and 34 neutrons is

A)5.
B)29.
C)34.
D)58.
E)63.

Question 22

An imaginary element Xz consists of two isotopes having masses of 100.0 amu and 102.0 amu.A sample of Xz was found to contain 75.0% of the ¹⁰⁰Xz isotope and 25.0% of the ¹⁰²Xz.Calculate the atomic weight of Xz.

A)100.3 amu
B)100.5 amu
C)101.0 amu
D)101.5 amu
E)101.8 amu

Question 23

Naturally occurring iron contains 5.82% ⁵⁴Fe,91.66% ⁵⁶Fe,2.19% ⁵⁷Fe,and 0.33% ⁵⁸Fe.The respective atomic masses are 53.940 amu,55.935 amu,56.935 amu,and 57.933 amu.Calculate the average atomic mass of iron.

Question 24

An atom with Z = 31 and A = 69 contains ________ protons and ________ neutrons.

A)31;69
B)69;31
C)31;38
D)38;31
E)31;100

Question 25

Which of the following represents a pair of isotopes?

A) C, N

B) H, H

C) S,S²

D)O₂,O₃
E)all are pairs of isotopes

Question 26

Adding one neutron to the nucleus of an atom

A)converts it to an isotope of the same element.
B)increases its atomic mass by two units,but does not change its atomic number.
C)increases its atomic number by one unit but does not change its atomic mass.
D)does not change either its atomic number or its atomic mass.
E)converts it to an atom of a different element.

Question 27

Atoms of Cl contain ________ protons and ________ electrons.

A)17;17
B)17;18
C)18;17
D)35;18
E)35;17

Question 28

An isotope with 15 protons and 17 neutrons will have which symbol?

A) Cl
B) Cl
C) P
D) P
E) P

Question 29

Adding one proton to the nucleus of an atom

A)converts it to an isotope of the same element.
B)increases its atomic mass by one unit,but does not change its atomic number.
C)increases its atomic number by one unit but does not change its atomic mass.
D)does not change either its atomic number or its atomic mass.
E)converts it to an atom of a different element.

Question 30

The value of Z for an atom containing 29 protons,29 electrons,and 34 neutrons,is

A)5.
B)29.
C)34.
D)58.
E)63.

Question 31

An atom that contains 47 protons,47 electrons,and 60 neutrons is an isotope of

A)Ag.
B)Al.
C)Nd.
D)Bh.
E)cannot be determined from the information given

Question 32

Consider the isotope
Br.The atomic number is ________,and the mass number is ________.

A)79;35
B)35;79
C)44;35
D)35;44
E)35;114

Question 33

Which elements all belong in the same group?

A)C,N,O
B)Fe,Cu,Ni
C)B,Si,As
D)F,Cl,Br
E)Al,Ge,Sb

Question 34

Cobalt is element 27.Cobalt-60 is used in the medical treatment of cancer.How many neutrons and protons are contained in the nucleus of this isotope?

A)27 neutrons,33 protons
B)33 neutrons,27 protons
C)27 neutrons,27 protons
D)33 neutrons,33 protons
E)60 neutrons,27 protons

Question 35

Elements in the Periodic Table are arranged according to

A)alphabetical order.
B)atomic number.
C)atomic weight.
D)date of discovery.
E)number of neutrons.

Question 36

An imaginary element Xq consists of two isotopes having masses of 100.0 amu and 102.0 amu.A sample of Xq was found to contain 20.0% of the ¹⁰⁰Xq isotope and 80.0% of the ¹⁰²Xq.Calculate the atomic weight of Xq.

A)100.2 amu
B)100.4 amu
C)101.0 amu
D)101.6 amu
E)202.0 amu

Question 37

Hydrogen exists as three isotopes.These isotopes differ by the number of ________ contained in the atom.

A)neutrons
B)protons
C)electrons
D)charges
E)particles

Question 38

An atom with a mass number of 58 and 32 neutrons will have ________ protons.

A)16
B)26
C)32
D)58
E)90

Question 39

The number of neutrons in an atom is equal to

A)atomic number - mass number.
B)mass number - atomic number.
C)the atomic number.
D)the mass number.

Question 40

The symbol of the element with 23 protons is

A)Mg.
B)Na.
C)V.
D)B.
E)none of the above

Question 41

Magnesium is an example of a(an)

A)alkali metal.
B)alkaline earth.
C)halogen.
D)noble gas.
E)transition metal.

Question 42

Which element is most likely to have chemical properties similar to those of bromine (atomic number 35)?

A)S (atomic number 16)
B)Se (atomic number 34)
C)Kr (atomic number 36)
D)Te (atomic number 52)
E)I (atomic number 53)

Question 43

How many electrons can occupy the 2s subshell?

A)1
B)2
C)6
D)8
E)10

Question 44

Which group contains only metalloids?

A)Ni,Pd,Pt
B)Si,Ge,As
C)Ce,Pr,Nd
D)Kr,Xe,Rn
E)Po,Fr,Ac

Question 45

Which element is not a semimetal?

A)Al
B)Si
C)Ge
D)As
E)none of the above

Question 46

Which chemical symbol represents a metalloid?

A)Al
B)B
C)Ga
D)Zn
E)Ar

Question 47

Which of the following is an alkali metal?

A)Al
B)Cl
C)He
D)Na
E)O

Question 48

Which chemical symbol represents a non-metal?

A)Al
B)B
C)Ga
D)Si
E)P

Question 49

Which chemical symbol represents a metallic element?

A)Ar
B)Br
C)Ca
D)H
E)P

Question 50

Element Z has the following properties:
A.noncombustible
B.unreactive
C.colorless,odorless gas at room temperature
D.nonconductor of electricity
Element Z can be classified as a ________ and will be found ________ the zigzag line of the periodic table.

A)metal;to the left of
B)metalloid;along side of
C)non-metal;to the right of
D)non-metal;along side of
E)metal;to the right of

Question 51

The maximum number of electrons in any orbital is

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

Question 52

Which column of the periodic table contains only nonmetals?

A)4A
B)5A
C)6A
D)7A
E)3A

Question 53

Which element is most likely to have chemical properties similar to those of potassium (atomic number 19)?

A)Ar (atomic number 18)
B)Ca (atomic number 20)
C)Sc (atomic number 21)
D)Rb (atomic number 37)
E)Sr (atomic number 38)

Question 54

Which group contains only noble gases?

A)Ni,Pd,Pt
B)Si,Ge,As
C)Ce,Pr,Nd
D)Kr,Xe,Rn
E)Po,Fr,Ac

Question 55

How many electrons can occupy the shell having n = 4?

A)2
B)8
C)10
D)18
E)32

Question 56

Element Z has the following properties:
A.silvery-white solid at room temperature
B.malleable
C.used as a catalyst
D.conducts electricity
Element Z can be classified as a ________ and will be found ________ the zigzag line of the periodic table.

A)metal;along side of
B)metalloid;along side of
C)non-metal;to the right of
D)non-metal;along side of
E)metal;to the left of

Question 57

Which group of elements contains only non-metals?

A)Mg,Ca,Sr
B)V,Cr,Mn
C)Cl,Ar,K
D)P,As,Se
E)C,S,I

Question 58

How many electrons can occupy the shell having n = 2?

A)2
B)6
C)8
D)18
E)32

Question 59

Which of the following elements is a noble gas?

A)Cl
B)H
C)N
D)Ne
E)O

Question 60

How many electrons can occupy the 3d subshell?

A)1
B)2
C)6
D)8
E)10

Question 61

What is the electron configuration of Mg?

A)1s² 2s² 2p⁸
B)1s² 2s² 2p⁶ 3s²
C)1s² 2s² 2p⁶ 3s¹ 3p³
D)1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁵
E)none of the above

Question 62

Explain the term "quantized" as it applies to the energy of electrons.(Optional: Be sure to include an example that has not been previously mentioned of something that is quantized. )

Question 63

What is the electron configuration of Fe?

A)1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁸
B)1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶
C)1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 4p⁶
D)1s² 2s² 2p⁶ 3s² 3p⁶ 4s²
E)1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶

Question 64

The electron capacity of the third shell is

A)8.
B)10.
C)18.
D)24.
E)32.

Question 65

Which group contains only f-block elements?

A)Ni,Pd,Pt
B)Si,Ge,As
C)Ce,Pr,Nd
D)Kr,Xe,Rn
E)Po,Fr,Ac

Question 66

The element with the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁵ is

A)fluorine.
B)chlorine.
C)carbon.
D)potassium.
E)sulfur.

Question 67

The element with the electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ is

A)Rb.
B)Ar.
C)Ca.
D)K.
E)Mg.

Question 68

The shell having n = 2 contains ________ subshells,________ orbitals,and up to ________ electrons.

A)1;2;4
B)2;4;8
C)3;6;12
D)4;8;16
E)none of the above

Question 69

An element with the same number of valence electrons as the element with the electron configuration
1s² 2s² 2p⁶ 3s² 3p⁵ is

A)iodine.
B)oxygen.
C)argon.
D)potassium.
E)sulfur.

Question 70

The ground state electron configuration for nickel is

A)1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰.
B)1s² 2s² 2p⁶ 3s² 4s² 3d¹⁰ 4p⁴.
C)1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 4d⁸.
D)1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁸.

Question 71

The number of valence electrons in an element with electron configuration 1s² 2s² 2p⁶ 3s² 3p⁴ is

A)2.
B)4.
C)6.
D)8.
E)16.

Question 72

Which of the following subshells consists of three orbitals?

A)4s
B)4p
C)4d
D)4f
E)none of the above

Question 73

The shell having n = 3 contains ________ subshells,________ orbitals,and up to ________ electrons

A)2;4;8
B)3;6;12
C)3;6;18
D)3;9;18
E)3;12;36

Question 74

The correct order for filling orbitals with electrons is

A)1s,2s,2p,3s,3d,4s,3p.
B)1s,2s,3s,4s,2p,3p,3d.
C)1s,2s,2p,3s,3p,4s,3d.
D)1s,2s,3d,2p,3p,3s,4s.
E)1s,2s,2p,3s,3d,3p,4s.

Question 75

The element with the electron configuration 1s² 2s² 2p⁴ is

A)Be.
B)C.
C)O.
D)Si.
E)S.

Question 76

The electron configuration for phosphorus is

A)1s² 1p⁶ 2s² 2p⁵.
B)1s² 2s² 2p⁶ 3p⁵.
C)1s² 2s² 2p⁶ 3s⁴ 3p¹.
D)2s² 2p⁶ 3s² 3p⁵.
E)1s²2s²2p⁶3s²3p³.

Question 77

At maximum,an f subshell can hold ________ electrons,a d subshell can hold ________ electrons and a p subshell can hold ________ electrons.

A)14;10;6
B)2;8;18
C)18;8;2
D)2;12,;21
E)14;6;10

Question 78

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

A)2
B)6
C)8
D)10
E)14

Question 79

What is the electron configuration of S?

A)1s² 2s² 2p²
B)1s² 2s² 2p⁶ 3s² 3p²
C)1s² 2s² 2p⁶ 3s² 3p⁴
D)1s² 2s² 2p⁶ 3s² 3p⁶
E)1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹

Question 80

Which of the following subshells consists of five orbitals?

A)4s
B)4p
C)4d
D)4f
E)none of the above