Deck 3: Atoms and the Periodic Table

Question 1

Which color of light carries the most energy per photon?

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

Answer 1

blue

Question 2

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 2

11 protons, 11 electrons, 12 neutrons.

Question 3

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

Answer 3

Robert Millikan - discovered the neutron

Question 4

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

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

Question 5

Which of the following has the longest wavelength?

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

Question 6

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

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

Question 7

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

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

Question 8

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

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

Question 9

The term atom was first used by

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

Question 10

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

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

Question 11

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 is the lower the speed.

Question 12

Which radiation type has no detectable charge?

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

Question 13

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

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

Question 14

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

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

Question 15

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 16

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 17

Which radiation type was shown to be identical to N electron?

A) alpha
B) beta
C) gamma
D) None are identical to an electron.

Question 18

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

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

Question 19

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

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

Question 20

Which subatomic particle has the incorrect charge indicated?

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

Question 21

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 22

Who proposed the law of definite proportions?

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

Question 23

Which element is a noble gas?

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

Question 24

The majority of the elements are

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

Question 25

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 26

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 27

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 28

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

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

Question 29

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 30

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

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

Question 31

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

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

Question 32

What classification is given to the elements found in the A Groups of the periodic table?

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

Question 33

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 34

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 35

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 36

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 37

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 38

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 39

Which is not a property of nonmetals?

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

Question 40

Which element is found in Group 2 - in Period 4?

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

Question 41

Group 2 elements, M, react with oxygen, O, to form oxides with the formula

A) MO.
B) M₂O.
C) MO₂.
D) M₂O₃.

Question 42

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 43

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 44

Which of the following elements conducts electricity well?

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

Question 45

Which of the following is a transition element?

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

Question 46

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 47

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 exists between radium and strontium.

Question 48

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 49

Which element would most likely have the Lewis dot symbol shown below?

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

Question 50

What element of the following is a metal that forms +1 ions?

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

Question 51

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

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

Question 52

Which atom in the following series is the largest?

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

Question 53

Which of the following is an element in Group 14?

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

Question 54

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

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

Question 55

Which of the following halogens has the smallest atomic radius?

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

Question 56

Which of the following elements is a metal?

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

Question 57

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 58

Which group of elements consists of all alkaline earth elements?

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

Question 59

In the following set, which atom is the smallest?

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

Question 60

Sodium has chemical properties most like

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

Question 61

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 62

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 63

Which of the following is a property of metals?

A) malleable
B) conductor
C) lose electrons to form positive ions
D) all of the above

Question 64

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

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

Question 65

What is the ground state configuration for an argon atom?

A) 1s²2s²2p⁶3s²3p⁶
B) 1s²2s²2p⁶3s²3p⁸
C) 1s²2s²2p⁶
D) 1s²2s²2p⁶3s²

Question 66

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

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

Question 67

According to the periodic table all the elements in Group 2 are

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

Question 68

Which of the following elements has 8 valence electrons?

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

Question 69

Which of the following elements has five valence electrons?

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

Question 70

Which of the following ground state configurations matches represents an atom with 7 valence electrons?

A) 1s²2s²2p⁶3s²3p⁶
B) 1s²2s²2p⁶3s²3p⁴
C) 1s²2s²2p⁶3s²
D) 1s²2s²2p⁶3s²3p⁵

Question 71

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

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

Question 72

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 73

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 74

What general electronic arrangement is characteristic of chemical inactivity?

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

Question 75

Which of the following elements is found in Group 16 and in Period 3?

A) phosphorus, P
B) chromium, Cr
C) sulfur, S
D) oxygen, O

Question 76

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

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

Question 77

Which of the following elements is a nonmetal?

A) potassium
B) copper
C) sulfur
D) lithium

Question 78

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

A) 2
B) 4
C) 5
D) 8

Question 79

Which element has the following ground state electron configuration 1s²2s²2p⁶3s²3p⁶4s¹?

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

Question 80

Which of the following reacts most violently with water?

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