Chapter 5 ReviewChapter 5 Review“Electrons in Atoms”“Electrons in Atoms”

Pre-AP ChemistryPre-AP Chemistry

Charles Page High SchoolCharles Page High School

Stephen L. CottonStephen L. Cotton

Chapter 5 ReviewChapter 5 Review What is the next atomic orbital in the What is the next atomic orbital in the

series: 1s, 2s, 2p, 3s, 3p, series: 1s, 2s, 2p, 3s, 3p, ?? In Bohr’s model of the atom, where are In Bohr’s model of the atom, where are

the electrons and protons located?the electrons and protons located? What is the basis for exceptions to the What is the basis for exceptions to the

aufbau diagram?aufbau diagram? How does the energy of an electron How does the energy of an electron

change when the electron moves closer change when the electron moves closer to the nucleus?to the nucleus?

Chapter 5 ReviewChapter 5 Review If the spin of one electron in an If the spin of one electron in an

orbital is “clockwise”, what is the spin orbital is “clockwise”, what is the spin of the other electron in that orbital?of the other electron in that orbital?

What is the approximate energy of a What is the approximate energy of a photon having a frequency of 4 x 10photon having a frequency of 4 x 1077 Hz? (Hz? (hh = 6.6 x 10 = 6.6 x 10-34-34 J J .. s) s)

Which of the following would be most Which of the following would be most stable: a) 4dstable: a) 4d555s5s11, or b) 4d, or b) 4d445s5s22

Chapter 5 ReviewChapter 5 Review How many unpaired electrons are in How many unpaired electrons are in

a sulfur atom (Z = 16)?a sulfur atom (Z = 16)? According to the Heisenberg According to the Heisenberg

uncertainty principle, if the position uncertainty principle, if the position of a moving particle is known, what of a moving particle is known, what other quantity CANNOT be known?other quantity CANNOT be known?

Which of the following has the Which of the following has the highest frequency: a) x-rays, or highest frequency: a) x-rays, or b) gamma raysb) gamma rays

Chapter 5 ReviewChapter 5 Review What is the electron configuration of What is the electron configuration of

potassium?potassium? What is the number of electrons in What is the number of electrons in

the outermost energy level of an the outermost energy level of an oxygen atom?oxygen atom?

How does the speed of visible light How does the speed of visible light compare with the speed of gamma compare with the speed of gamma rays, when both speeds are rays, when both speeds are measured in a vacuum?measured in a vacuum?

Chapter 5 ReviewChapter 5 Review The principal quantum number The principal quantum number

indicates what property of an indicates what property of an electron?electron?

Which scientist developed the Which scientist developed the quantum mechanical model of the quantum mechanical model of the atom?atom?

In the Bohr model of the atom, an In the Bohr model of the atom, an electron in an orbit has a fixed ___.electron in an orbit has a fixed ___.

Chapter 5 ReviewChapter 5 Review What is the maximum number of What is the maximum number of

electrons in the second principal electrons in the second principal energy level?energy level?

If three electrons are available to fill If three electrons are available to fill three empty 2p atomic orbitals, how three empty 2p atomic orbitals, how will the electrons be distributed?will the electrons be distributed?

What is the wavelength of a wave What is the wavelength of a wave that has a frequency of 60 MHz?that has a frequency of 60 MHz?

Chapter 5 ReviewChapter 5 Review When an electron moves from a When an electron moves from a

lower to a higher energy level, the lower to a higher energy level, the electron _____.electron _____.

According to the aufbau principle, According to the aufbau principle, electrons enter orbitals of ___ first.electrons enter orbitals of ___ first.

What is the maximum number of “f” What is the maximum number of “f” orbitals in any single energy level of orbitals in any single energy level of an atom?an atom?

Chapter 5 ReviewChapter 5 Review What is the frequency of a photon What is the frequency of a photon

having an energy 5 x 10having an energy 5 x 10-24-24 J? J? ((hh = 6.6 x 10 = 6.6 x 10-34-34 J J .. s) s)

What types of atomic orbitals (s, p, What types of atomic orbitals (s, p, d, or f) are in the third principal d, or f) are in the third principal energy level?energy level?

How would the atomic emission How would the atomic emission spectra of a sodium atom on Earth spectra of a sodium atom on Earth compare with sodium in the sun?compare with sodium in the sun?

Chapter 5 ReviewChapter 5 Review How many energy sublevels are in How many energy sublevels are in

the second principal energy level?the second principal energy level? Emission of light from an atom Emission of light from an atom

occurs when an electron _____.occurs when an electron _____. Who predicted that all matter can Who predicted that all matter can

behave as waves as well as behave as waves as well as particles?particles?

What are quanta of light called?What are quanta of light called?

Chapter 5 ReviewChapter 5 Review Stable electron configurations are Stable electron configurations are

likely to contain ____.likely to contain ____. What is the maximum number of “d” What is the maximum number of “d”

orbitals in a principal energy level?orbitals in a principal energy level? How are frequency and wavelength How are frequency and wavelength

of light related?of light related? What is the maximum number of What is the maximum number of

orbitals in the p sublevel?orbitals in the p sublevel?

Chapter 5 ReviewChapter 5 Review Which electron configuration would Which electron configuration would

be more stable: a) 4fbe more stable: a) 4f77, or b) 4f, or b) 4f1414

Which variable is directly Which variable is directly proportional to frequency: a) energy, proportional to frequency: a) energy, or b) wavelength?or b) wavelength?

Which color of visible light has the Which color of visible light has the shortest wavelength?shortest wavelength?

The quantum mechanical model of The quantum mechanical model of the atom involves the _____.the atom involves the _____.

Chapter 5 ReviewChapter 5 Review How many electrons are in the How many electrons are in the

highest occupied energy level of a highest occupied energy level of a neutral atom of each of the neutral atom of each of the following: a) chlorine atom; b) following: a) chlorine atom; b) copper atom; c) strontium atom?copper atom; c) strontium atom?