Light
Quantum Numbers & Electron Configs.
Atomic & Ionic Size
IE, EA, LE trends
Miscellaneous
100
What happens when light at a specific wavelength is absorbed by an atom?
An electron jumps to a higher energy level
100
Which of the following box configurations is the correct way to place 4 electrons in a p subshell?
What is B?
100
The direction on the periodic table that indicates increasing atomic size.
What is down and to the left?
100
Describe Lattice Energy
What is the energy required to break apart an ionic compound into gaseous ions?
100
This type of bonding involves the transfer of electrons from one atom to another.
What is ionic bonding?
200
As frequency of light increases, what happens to the energy and wavelength?
What is energy increases and wavelength decreases?
200
What is the noble gas configuration of Hg? How many inner, outer, and valence electrons does Hg have?
[Xe] 6s2 4f14 5d10
78 inner electrons
2 outer electrons
2 valence electrons
200
How do the sizes of anions and cations compare to that of the neutral atom?
Anions are larger and cations are smaller than the neutral atom.
200
The direction on the periodic table that indicates increasing (more negative) electron affinity.
What is up and to the right?
200
Estimate the molar absorptivity (units of 1/(M*cm)) of the substance (path length is 1 cm)
What is approximately 0.47 1/(M * cm)
300
An X-ray has a frequency of 1018 Hz and a radio wave has a frequency of 106 Hz. Compare the wavelength of the two waves.
X-ray: 3 * 10-10 m
Radio: 300 m
300
The possible values of l and ml when n = 3.
What are l = 0, 1, 2 and ml = -2, -1, 0, 1, 2?
300
Which of the following atoms is the largest?
P, Br, Cl, O, As
What is As?
300
Given these ionization energies, identify the atoms:
Atom 1: IE1 = 899.5, IE2 = 1757.1, IE3 = 14848.7, IE4 = 21006.6
Atom2: IE1 = 495.8, IE2 = 4562, IE3 = 6910.3, IE4 = 9543
a. Ca, Li
b. Be, Na
c. O, S
d. Rb, K
What are Be and Na?
300
Describe the properties of metals.
What are shiny, malleable, ductile, good conductors, reducing agents, and form basic oxides?
400
Why can hydrogen only emit 4 wavelengths of visible light?
Quantization of energy and energy levels only allow for specific energy changes.
400
A given atom has 20 electrons. How many electrons have n = 2, l = 1, and ml = -1?
What are 2 electrons?
400
Which of these ions is not in the isoelectronic set?
B+, Li-, Be, C2+, N3-
What is N3-?
400
Order these salts by increasing lattice energy:
NaCl, MgO, KI, LiF
What is KI < NaCl < LiF < MgO?
400
Which of these electron configurations is the most paramagnetic?
What is D?
500
Visible light has a range of wavelengths from 400. nm to 700. nm. What is the range of energy for visible light?
Energy ranges from 2.84 * 10-19 J to 4.97 * 10-19 J
500
The electron configuration of Sn and Sn4+.
Sn: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p2
Sn4+: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d10
500
Order these ions from smallest to largest:
K+, S2-, Sr2+, Sr+
What is K+ < S2- < Sr2+ < Sr+?
500
Write the chemical reaction associated with the 3rd ionization energy of Oxygen.
What is O2+ --> O3+ + e-?
500
The electron configuration of Ag
What is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d10?