Deck 3: Atoms and the Periodic Table

Question 1

What is the symbol for a neutral atom with 7 protons, 7 electrons, and 8 neutrons?

A) Si
B) P
C) Ne
D) N

Answer 1

N

Question 2

Which relationship is correct?

A) lower wavelength, small energy
B) lower frequency, lower wavelength
C) higher wavelength, higher frequency
D) higher frequency, larger energy

Answer 2

higher frequency, larger energy

Question 3

In the atom represented by the symbol ²³Na, there are

A) 11 protons, 11 electrons, 23 neutrons
B) 12 protons, 12 electrons, 23 neutrons
C) 11 protons, 11 electrons, 12 neutrons
D) 12 protons, 12 electrons, 34 neutrons

Answer 3

11 protons, 11 electrons, 12 neutrons

Question 4

Which of the following has the longest wavelength?

A) radio waves
B) X-rays
C) visible light
D) ultraviolet

Question 5

In a neutral atom there is an equal number of

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

Question 6

What is the main color of visible light emitted by neon?

A) yellow
B) orange-red
C) blue
D) green

Question 7

Which combination of individual and contribution is not correct?

A) Antoine Lavoisier - clarified confusion over cause of burning
B) John Dalton - proposed atomic theory
C) Marie Curie - discovered radium and polonium
D) Robert Millikan - discovered the neutron

Question 8

Which sub-atomic particle has the incorrect charge indicated?

A) proton - positive
B) electron - negative
C) neutron - neutral
D) nucleus - neutral

Question 9

Which electron configuration is inconsistent with the Bohr model?

A) 2-8-1
B) 2-6
C) 2-8-9
D) 2-8-8

Question 10

Which radiation type has no detectable charge?

A) alpha
B) beta
C) gamma
D) both alpha and beta

Question 11

Sunburn and some forms of skin cancer are caused by what kind of light?

A) infrared, IR
B) gamma, g
C) microwave
D) ultraviolet, UV

Question 12

Which statement is true about the speed of photons and light waves?

A) red light is slower than blue light
B) each color travels at a different speed
C) all travel at the same speed
D) the longer the wavelength, the lower the speed

Question 13

What is the number of valence electrons in phosphorus (P) with an electron configuration of 2-8-5?

A) 13
B) 8
C) 5
D) 15

Question 14

The third energy level can hold a maximum of how many electrons?

A) 0
B) 3
C) 9
D) 18

Question 15

John Dalton did his research work in which of the following countries?

A) France
B) Greece
C) Russia
D) England

Question 16

Which radiation type was shown to be identical with the electron?

A) alpha
B) beta
C) gamma
D) none are identical with the electron

Question 17

Which color of light carries the most energy per photon?

A) blue
B) green
C) orange
D) red

Question 18

Rutherford's foil experiment provided evidence for what atomic feature?

A) nucleus
B) electron
C) proton
D) neutron

Question 19

What element is used to define the atomic mass unit scale?

A) hydrogen
B) oxygen
C) neon
D) carbon

Question 20

Which of the following is not included with a periodic table entry?

A) atomic number
B) mass number
C) atomic weight
D) symbol

Question 21

What experimental evidence served as a basis of Bohr's atomic theory?

A) magnetic measurements
B) behavior of atoms at low temperatures
C) atomic mass
D) atomic spectra

Question 22

Two atoms which have the same atomic number but different mass numbers are called

A) sisters
B) neutrinos
C) allotropes
D) isotopes

Question 23

Carbon dioxide (CO₂) always has the same formula.What principle does this illustrate?

A) the law of electric neutrality
B) the law of conservation of matter
C) the law of definite proportions
D) no particular law

Question 24

Which is the ground state of a hydrogen atom?

A) three electrons in the n = 1 level
B) one electron in the n = 2 level
C) one electron in the n = 1 level
D) one electron in the n = 1 level and one electron in the n = 2 level

Question 25

Who proposed the law of definite proportions?

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

Question 26

Which statement was not part of Dalton's atomic theory?

A) matter is composed of indestructible particles called atoms
B) all atoms of a given element are alike
C) elements and compounds are composed of definite arrays of atoms
D) some atoms may emit nuclear radiation

Question 27

What name is given to the sum of neutrons and protons in an atom's nucleus?

A) atomic number
B) mass number
C) isotope number
D) atomic mole mass

Question 28

The term atom was first used by

A) Dalton
B) Rutherford
C) Democritus
D) Lavoisier

Question 29

The name given to the number of protons in an atom's nucleus is

A) atomic number
B) family number
C) electron number
D) mass number

Question 30

The modern periodic table is based on arranging elements in the order of their

A) atomic weight
B) atomic number
C) mass number
D) isotope number

Question 31

The majority of the elements are

A) gases
B) nonmetals
C) radioactive
D) metals

Question 32

Which of the following ground state configurations matches represents an atom with 3 valence electrons?

A) 2-8-3
B) 2-1
C) 2-3-5
D) 2-8-8

Question 33

What metal was used as the foil in Rutherford's famous scattering experiment?

A) tin
B) aluminum
C) gold
D) silver

Question 34

Who was the first person to propose a consistent modern atomic theory?

A) Democritus
B) Lavoisier
C) Proust
D) Dalton

Question 35

An electric field can deflect a beam of beta, alpha and gamma rays.Which ray will be deflected the least?

A) alpha
B) beta
C) gamma
D) all are deflected by the same amount

Question 36

The STM, scanning tunneling microscope, shows

A) the outer boundary surface of the electrons in an atom
B) number of excited electrons in an atom
C) the charge on the nucleus
D) the mass of the nucleus

Question 37

Which wavelength of visible light is red?

A) 400 nm
B) 500 nm
C) 700 nm
D) 300 nm

Question 38

What elements make up the A group of elements?

A) representative or main-group
B) transition
C) lanthanide
D) actinide

Question 39

Which of the following ground state configuration matches Ar, argon?

A) 2-8-1
B) 2-2-6-2-6
C) 2-2-6-8
D) 2-8-8

Question 40

How will a stream of electrons behave in an electric field?

A) be unchanged
B) be stopped
C) be deflected toward the positive pole
D) be deflected toward the negative pole

Question 41

What element (X) is a metal that forms +1 ions?

A) sodium (Na)
B) aluminum (Al)
C) calcium (Ca)
D) nitrogen (N)

Question 42

Sodium has chemical properties most like

A) cesium, Cs
B) magnesium, Mg
C) chlorine, Cl
D) mercury, Hg

Question 43

The periodic law of the elements states that the properties of the elements are a periodic function of

A) atomic weights
B) atomic numbers
C) both atomic weights and atomic numbers
D) neither atomic weights nor atomic numbers

Question 44

Which sequence lists a nonmetal, metalloid, and a transition metal, respectively?

A) Al, As, Ag
B) Co, Pb, P
C) O, Ge, Cs
D) N, Si, Fe

Question 45

The reason for your answer in the previous question is that both cesium and sodium

A) have about the same atomic weight
B) have about the same atomic number
C) are both metals
D) are in the same group of the periodic table

Question 46

Who was the Russian who was a pioneer in the development of the periodic law?

A) Meyerovick
B) Mendeleev
C) Dobereiner
D) Newlands

Question 47

Which of the following is a transition element in the periodic table?

A) sodium
B) sulfur
C) boron
D) chromium

Question 48

A noble gas is

A) Al
B) Ar
C) H
D) O

Question 49

Which element is found in Group IIA - in Period 4?

A) magnesium, Mg
B) zinc, Zn
C) calcium, Ca
D) potassium, K

Question 50

Which element would most likely have the Lewis dot symbol, :X: ?

A) oxygen
B) nitrogen
C) carbon
D) fluorine

Question 51

How many valence electrons are in boron, B?

A) 5
B) 3
C) 2
D) 0

Question 52

If the compound formed by radium and bromine has the formula RaBr₂, what is the formula of the compound formed by strontium (Sr) and iodine (I)?

A) SrI
B) Sr₂I
C) SrI₂
D) no correlation between radium and strontium

Question 53

Which of the following halogens has the smallest atomic radius?

A) iodine
B) fluorine
C) bromine
D) chlorine

Question 54

Which is not true about metals?

A) good conductors of heat
B) form positive ions
C) can be stretched or drawn into wires
D) many are liquids

Question 55

Which element is a noble gas?

A) Ni
B) Ne
C) Si
D) B

Question 56

In the following set, which atom is the smallest?

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

Question 57

Which is not a property of nonmetals?

A) malleable
B) insulator
C) gain electrons to form negative ions
D) poor conductor of electricity

Question 58

Which element conducts electricity well?

A) arsenic
B) boron
C) sulfur
D) silver

Question 59

Which of the following is an atom in Group IVA?

A) C
B) Cu
C) Cs
D) Cl

Question 60

Which element is a metal?

A) Cl
B) Na
C) Ar
D) S

Question 61

Which law states that matter is neither lost nor gained during a chemical reaction?

A) Law of multiple proportions
B) Law of definite proportions
C) Law of chemical reactions
D) Law of conservation of mass

Question 62

Elements that conduct heat and electricity well are

A) nonmetals
B) noble gases
C) metals
D) metalloids

Question 63

Why are atoms at the bottom of a group in the periodic table larger than atoms at the top of the group?

A) larger atoms have more electrons and more occupied energy levels
B) larger atoms have more protons
C) larger atoms have more energy levels occupied by electrons
D) larger atoms have less screening effect by inner electrons

Question 64

If an element in a group in the periodic table has a combining power (valence) of two, another element in the same group likely has a combining power of ____

A) two
B) one or three
C) an unpredictable number
D) four or five, depending on the element's position in the group

Question 65

What is the symbol for a neutral atom with 35 protons, 35 electrons, and 46 neutrons?

A) Se
B) Br
C) Cl
D) Ti

Question 66

An element with two valence (bonding, or outer shell) electrons is

A) Mg
B) Na
C) Cl
D) Al

Question 67

Which subatomic particles are found in the nucleus of ³²P atom?

A) 15 protons, 15 electrons, 17 neutrons
B) 15 protons, 15 electrons, 32 neutrons
C) 15 protons, 32 neutrons
D) 15 protons, 17 neutrons

Question 68

Which atom in the following series is the largest?

A) K
B) Rb
C) Cs
D) Na

Question 69

Group IIA elements, M, react with oxygen, O, to form oxides with the formula

A) MO
B) M₂O
C) MO₂
D) M₂O₃

Question 70

Which type of electromagnetic radiation has the least amount of energy per photon?

A) infrared
B) gamma
C) radio waves
D) ultraviolet

Question 71

An element with electronic structure of 2-8-8 is in which of the following groups of the periodic table?

A) IIA
B) IVA
C) VIA
D) VIIIA

Question 72

According to the periodic table all the elements in Group IIA are

A) a noble gas
B) metals
C) metalloids
D) nonmetals

Question 73

Which element has 8 valence electrons?

A) Be
B) F
C) Na
D) Ne

Question 74

The periodic table is helpful in all the following endeavors but one.Which is the exception?

A) predicting the number of isotopes of elements
B) predicting chemical reactivity of elements
C) predicting physical properties of elements
D) predicting formula of compounds

Question 75

Which group of elements is all alkaline earths?

A) Mg, Cl, Na, As
B) Ca, Mg, Ba, Ra
C) Ba, Al, Na, As
D) Na, K, Li, Rb

Question 76

Which of the following elements has five valence electrons?

A) Be
B) F
C) P
D) Xe

Question 77

Which of the following reacts most violently with water?

A) Ne, neon
B) Na, sodium
C) Li, lithium
D) K, potassium

Question 78

How many electrons in the valence shell of a calcium atom?

A) 20
B) 8
C) 2
D) 1

Question 79

An element with electronic structure of 2-8-3 is in which of the following groups of the periodic table?

A) IA
B) IIA
C) IIIA
D) IVA

Question 80

What general electronic arrangement is characteristic to chemical inactivity?

A) a total of eight electrons per atom
B) filled s and p orbitals
C) all electrons paired
D) 2-8-8