How does the energy of anHow does the energy of an
electron change when theelectron change when the
electron moves closer ...
The principal quantum number
indicates what property of an
electron?
a.position
c. energy level
b.speed
d. electron cloud ...
What is the shape of the
3p atomic orbital?
a.sphere
c. bar
b.Dumbbell
d. two perpendicular
dumbbells
How many energy sublevels areHow many energy sublevels are
in the second principal energyin the second principal energy
le...
What is the maximum number ofWhat is the maximum number of ff
orbitals in any single energy levelorbitals in any single en...
What is the maximum number ofWhat is the maximum number of
dd orbitals in a principal energyorbitals in a principal energy...
What is the maximum number ofWhat is the maximum number of
orbitals in theorbitals in the pp sublevel?sublevel?
a.a. 22 c....
What is the maximum number ofWhat is the maximum number of
electrons in the second principalelectrons in the second princi...
When an electron moves from aWhen an electron moves from a
lower to a higher energy level, thelower to a higher energy lev...
The shape (not the size) of anThe shape (not the size) of an
electron cloud is determined byelectron cloud is determined b...
The letter "The letter "pp" in the symbol 4" in the symbol 4pp
indicates the ____.indicates the ____.
spin of an electrons...
What types of atomic orbitals areWhat types of atomic orbitals are
in the third principal energy level?in the third princi...
According to the aufbau principle,According to the aufbau principle,
____.____.
a.a. an orbital may be occupied byan orbit...
What is the number of electrons inWhat is the number of electrons in
the outermost energy level of anthe outermost energy ...
If three electrons are available to fillIf three electrons are available to fill
three empty 2three empty 2pp atomic orbit...
How many unpaired electrons areHow many unpaired electrons are
in a sulfur atom (atomic numberin a sulfur atom (atomic num...
How many half-filled orbitals areHow many half-filled orbitals are
in a bromine atom?in a bromine atom?
a.a. 11 c.c. 33
b....
Stable electron configurations areStable electron configurations are
likely to contain ____.likely to contain ____.
a.a. f...
Which electron configuration ofWhich electron configuration of
the 4the 4ff energy sublevel is the mostenergy sublevel is ...
Which of the following electronWhich of the following electron
configurations of outer sublevelsconfigurations of outer su...
The quantum mechanical model ofThe quantum mechanical model of
the atom ____.the atom ____.
a.a. defines the exact path of...
According to the HeisenbergAccording to the Heisenberg
uncertainty principle, if theuncertainty principle, if the
position...
What is another name for theWhat is another name for the
representative elements?representative elements?
a.a. Group A ele...
Each period in the periodic tableEach period in the periodic table
corresponds to ____.corresponds to ____.
a.a. a princip...
The modern periodic table isThe modern periodic table is
arranged in order of increasingarranged in order of increasing
at...
Who arranged the elementsWho arranged the elements
according to atomic mass and usedaccording to atomic mass and used
the ...
Which of the following electronWhich of the following electron
configurations is most likely to resultconfigurations is mo...
Which of the following statements isWhich of the following statements is
true about ions?true about ions?
a.a. Cations for...
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  1. 1. How does the energy of anHow does the energy of an electron change when theelectron change when the electron moves closer to theelectron moves closer to the nucleus?nucleus? a.a. It decreases.It decreases. c. It stays the same.c. It stays the same. b.b. It increases.It increases. d.d. It doubles.It doubles.
  2. 2. The principal quantum number indicates what property of an electron? a.position c. energy level b.speed d. electron cloud shape
  3. 3. What is the shape of the 3p atomic orbital? a.sphere c. bar b.Dumbbell d. two perpendicular dumbbells
  4. 4. How many energy sublevels areHow many energy sublevels are in the second principal energyin the second principal energy level?level? a.a. 11 c.c. 33 b.b. 22 d.d. 44
  5. 5. What is the maximum number ofWhat is the maximum number of ff orbitals in any single energy levelorbitals in any single energy level in an atom?in an atom? a.a. 11 c.c. 55 b.b. 33 d.d. 77
  6. 6. What is the maximum number ofWhat is the maximum number of dd orbitals in a principal energyorbitals in a principal energy level?level? a.a. 11 c.c. 33 b.b. 22 d.d. 55
  7. 7. What is the maximum number ofWhat is the maximum number of orbitals in theorbitals in the pp sublevel?sublevel? a.a. 22 c.c. 44 b.b. 33 d.d. 55
  8. 8. What is the maximum number ofWhat is the maximum number of electrons in the second principalelectrons in the second principal energy level?energy level? a.a. 22 c.c. 1818 b.b. 88 d.d. 3232
  9. 9. When an electron moves from aWhen an electron moves from a lower to a higher energy level, thelower to a higher energy level, the electron ____.electron ____. a.a. always doubles its energyalways doubles its energy b.b. absorbs a continuously variableabsorbs a continuously variable amount of energyamount of energy c.c. absorbs a quantum of energyabsorbs a quantum of energy d.d. moves closer to the nucleusmoves closer to the nucleus
  10. 10. The shape (not the size) of anThe shape (not the size) of an electron cloud is determined byelectron cloud is determined by the electron's ____.the electron's ____. a.a. energy sublevelenergy sublevel c.c. speedspeed b.b. positionposition d.d. principal quantum numberprincipal quantum number
  11. 11. The letter "The letter "pp" in the symbol 4" in the symbol 4pp indicates the ____.indicates the ____. spin of an electronspin of an electron c.c. principle energy levelprinciple energy level orbital shapeorbital shape speed of an electronspeed of an electron
  12. 12. What types of atomic orbitals areWhat types of atomic orbitals are in the third principal energy level?in the third principal energy level? a.a. ss andand pp onlyonly c.c. s, p,s, p, andand dd onlyonly b.b. pp andand dd onlyonly d.d. s, p, d,s, p, d, andand ff
  13. 13. According to the aufbau principle,According to the aufbau principle, ____.____. a.a. an orbital may be occupied byan orbital may be occupied by only two electronsonly two electrons b.b. electrons in the same orbitalelectrons in the same orbital must have opposite spinsmust have opposite spins c.c. electrons enter orbitals of highestelectrons enter orbitals of highest energy firstenergy first d.d. electrons enter orbitals of lowestelectrons enter orbitals of lowest energy firstenergy first
  14. 14. What is the number of electrons inWhat is the number of electrons in the outermost energy level of anthe outermost energy level of an oxygen atom?oxygen atom? a.a. 22 c.c. 66 b.b. 44 d.d. 88
  15. 15. If three electrons are available to fillIf three electrons are available to fill three empty 2three empty 2pp atomic orbitals, howatomic orbitals, how will the electrons be distributed in thewill the electrons be distributed in the three orbitals?three orbitals? a.a. one electron in each orbitalone electron in each orbital b.b. two electrons in one orbital, onetwo electrons in one orbital, one in another, none in the thirdin another, none in the third c.c. three in one orbital, none in thethree in one orbital, none in the other twoother two d.d. Three electrons cannot fill threeThree electrons cannot fill three empty 2empty 2pp atomic orbitals.atomic orbitals.
  16. 16. How many unpaired electrons areHow many unpaired electrons are in a sulfur atom (atomic numberin a sulfur atom (atomic number 16)?16)? a.a. 00 c.c. 22 b.b. 11 d.d. 33
  17. 17. How many half-filled orbitals areHow many half-filled orbitals are in a bromine atom?in a bromine atom? a.a. 11 c.c. 33 b.b. 22 d.d. 44
  18. 18. Stable electron configurations areStable electron configurations are likely to contain ____.likely to contain ____. a.a. filled energy sublevelsfilled energy sublevels b.b. fewer electrons than unstablefewer electrons than unstable configurationsconfigurations c.c. unfilledunfilled ss orbitalsorbitals d.d. electrons with a clockwise spinelectrons with a clockwise spin
  19. 19. Which electron configuration ofWhich electron configuration of the 4the 4ff energy sublevel is the mostenergy sublevel is the most stable?stable? a.a. 44ff66 c.c. 44ff77 b.b. 44ff1010 d.d. 44ff1414
  20. 20. Which of the following electronWhich of the following electron configurations of outer sublevelsconfigurations of outer sublevels is the most stable?is the most stable? a.a. 44dd55 55ss11 c.c. 44dd99 55ss22 b.b. 44dd55 55ss22 d.d. 44dd99 55ss11
  21. 21. The quantum mechanical model ofThe quantum mechanical model of the atom ____.the atom ____. a.a. defines the exact path of andefines the exact path of an electron around the nucleuselectron around the nucleus b.b. was proposed by Niels Bohrwas proposed by Niels Bohr c.c. involves the probability of findinginvolves the probability of finding an electron in a certain positionan electron in a certain position d.d. has many analogies in the visiblehas many analogies in the visible worldworld
  22. 22. According to the HeisenbergAccording to the Heisenberg uncertainty principle, if theuncertainty principle, if the position of a moving particle isposition of a moving particle is known, what other quantityknown, what other quantity CANNOT be known?CANNOT be known? a.a. massmass c.c. spinspin b.b. chargecharge d.d. velocityvelocity
  23. 23. What is another name for theWhat is another name for the representative elements?representative elements? a.a. Group A elementsGroup A elements c.c. Group C elementsGroup C elements b.b. Group B elementsGroup B elements d.d. transition elementstransition elements
  24. 24. Each period in the periodic tableEach period in the periodic table corresponds to ____.corresponds to ____. a.a. a principal energy levela principal energy level c.c. an orbitalan orbital b.b. an energy sublevelan energy sublevel d.d. a suborbitala suborbital
  25. 25. The modern periodic table isThe modern periodic table is arranged in order of increasingarranged in order of increasing atomic ____.atomic ____. a.a. massmass c.c. numbernumber b.b. chargecharge d.d. radiusradius
  26. 26. Who arranged the elementsWho arranged the elements according to atomic mass and usedaccording to atomic mass and used the arrangement to predict thethe arrangement to predict the properties of missing elements?properties of missing elements? a.a. Henry MoseleyHenry Moseley c.c. John DaltonJohn Dalton b.b. Antoine LavoisierAntoine Lavoisier d.d. Dmitri MendeleevDmitri Mendeleev
  27. 27. Which of the following electronWhich of the following electron configurations is most likely to resultconfigurations is most likely to result in an element that is relativelyin an element that is relatively inactive?inactive? a.a. a half-filled energy sublevela half-filled energy sublevel b.b. a filled energy sublevela filled energy sublevel c.c. one empty and one filled energyone empty and one filled energy sublevelsublevel d.d. a filled highest occupied principala filled highest occupied principal energy levelenergy level
  28. 28. Which of the following statements isWhich of the following statements is true about ions?true about ions? a.a. Cations form when an atom gainsCations form when an atom gains electrons.electrons. b.b. Cations form when an atom losesCations form when an atom loses electrons.electrons. c.c. Anions form when an atom gainsAnions form when an atom gains protons.protons. d.d. Anions form when an atom losesAnions form when an atom loses protons.protons.

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