Chapter 13 – ReviewElectrons in Atoms

Milbank High School

Chapter 13 - ReviewWhat scientist developed an

atomic theory in the early 1800s?Who discovered the electron?How does the energy of an

electron change when the electron moves closer to the nucleus?

Chapter 13 - ReviewWhat scientist developed the

quantum mechanical model of the atom?

How many energy sublevels are there in the second principal energy level?

What is the maximum number of d orbitals in a principal energy level?

Chapter 13 - ReviewWhat is the maximum number of

orbitals in the p sublevel?What is the maximum number of

electrons in the second principal energy level?

Chapter 13 - ReviewWhen an electron moves from a

lower to a higher energy level, the electron ____ a quantum of energy.

What did Rutherford’s experiment demonstrate?

The quantum mechanical model exactly predicts which characteristic of electrons in an atom?

Chapter 13 - ReviewWhat is the probability of finding

an electron within the region indicated by the drawn electron cloud?

What types of atomic orbitals are in the third principal energy level?

Chapter 13 - ReviewWhich of the following energy

levels has the lowest energy? 3d or 4s

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

Chapter 13 - ReviewWhat is the next atomic orbital in

the series: 1s, 2s, 2p, 3s, 3p, _?_How many unpaired electrons

are there in a sulfur atom? (atomic number =16)

Chapter 13 - ReviewWhat is the number of electrons

in the outermost energy level of an oxygen atom?

How many half-filled orbitals are there in a bromine atom?

What is the electron configuration of potassium?

Chapter 13 - ReviewWhat statement says that no

more than two electrons can occupy an atomic orbital, and that two electrons in the same orbital have opposite spins?

Chapter 13 - ReviewIn order to occupy the same

orbital, two electrons must have _____.

According to the Aufbau principle, electrons enter orbitals of _____ energy first.

Chapter 13 - ReviewWhich of the following electron

configurations is the most stable? 4d55s1 or 4d45s2

Stable electron configurations are likely to contain _____.

Chapter 13 - ReviewWhich color of visible light has

the shortest wavelength?What are quanta of light called?Who predicted that all matter can

behave as waves as well as particles?

Chapter 13 - ReviewThe amplitude of a wave is the

measure of the ______.What is the wavelength of an

electromagnetic wave that travels at 3 x 108 m/s and has a frequency of 60 Hz?

What is the approximate energy of a photon having a frequency of 4 x 107 Hz? (h = 6.6 x 10-34 J.s)

Chapter 13 - ReviewWhat is the approximate

frequency of a photon having an energy of 5 x 10-24 J? (h = 6.6 x 10-34 J.s)

Chapter 13 - ReviewThe lowest energy state of an

atom is called the ______.What is the approximate mass of

a particle having a wavelength of 1 x 10-7 m, and a speed of 1 m/s? (h = 6.6 x 10-34 J.s)