Chapter 4 Electron Arrangement
Dec 26, 2015
Chapter 4 Electron ArrangementChapter 4 Electron Arrangement
Write the Bohr Model for Barium
2, 8, 18, 18, 8, 2
Write the Orbital Notation for Aluminum
Write the Electron Configuration for Bismuth
Write the Electron Configuration for Bismuth
•1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p3
•1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p3
Write the Noble Gas Shorthand Notation for Tin.
•[Kr] 5s2 4d10 5p2
Write the Lewis Dot Structure for Sulfur
Draw the Bohr Model of Bromine
2, 8, 17, 7
Write the electron configuration for Iron
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d7
Write the Noble Gas Shorthand Notation for Vanadium
•[Ar] 4s2 3d3
Write the Orbital Notation for Iridium
Write the Lewis Dot Structure for SiliconWrite the Lewis Dot Structure for Silicon
Write the Noble Gas Shorthand Notation for Lead
[Xe] 6s2 4f14 5d10 6p2
Write the Electron Configuration for Polonium
Write the Electron Configuration for Polonium
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5
d10 6p4
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5
d10 6p4
Write the Lewis Dot Structure for Cs (Cesium)
Draw the Bohr Model for Zinc
Write the Orbital Notation for Oxygen
Write the Orbital Notation for Oxygen
How are wavelength and frequency related?
They are inversely proportional. As one increase the other decreases
For electromagnetic radiation, what does c (the speed of light) equal?
• The wavelength times the frequency.
How is frequency related to the energy of a wave?
• They are directly proportional. Waves with high frequency also possess high energy.
What is defined as the distance between corresponding points on adjacent waves?
Wavelength
How is frequency defined?
The number of waves that pass a given point over a specific period of time.
What units are used to measure frequency?
Hertz (Hz) (waves/sec.)
What is “ground state” for an atom?
When the electrons in an atom occupy their lowest energy levels possible.
What is the “excited state” of an atom?
When the electrons in an atom have absorbed energy and moved up to higher energy levels.
What quantum number indicates the major shell or energy level of an electron?
Principle Quantum Number
What is defined as a region in an atom where there is a high probability of finding an electron?
ORBITAL
What quantum number denotes the shape or subshell in which the electron is located?
Angular Momentum Quantum Number
What is the shape of an “s” orbital
SPHERICAL
What is the shape of a “p” orbital?
Dumbbell or
Ellipsoid
What quantum number tells the axes in space of the electron?
Magnetic Quantum Number
What quantum number tells the direction of an electron’s
spin?
Spin Quantum Number
What orbital shapes can be found in each of the first four energy levels?
1st Energy Level = s orbital 2nd Energy Level = s and p orbitals 3rd Energy Level = s, p, and d orbitals 4th Energy Level s, p, d, and f orbitals
2n2
What formula helps to determine the maximum number of electrons that can be contained per energy level?
How many orbitals are in the n = 4 shell? a. 4 b. 8 c. 12 d. 16
16
4
How many electrons in an atom could be described by the quantum numbers n = 3 and
ml = -1? a. 2 b. 4 c. 10 d.18
n = -2
Which of the following in not an acceptable set of quantum number for an electron in an
atom?
a. n = 1, l = 0, m = 0, s = +½ b. n = 4, l = 3, m = -2, s = -½ c. n = -2, l = 1, m = -1, s = +½ d. n = 3, l = 1, m = 0, s = -½
If electromagnetic radiation A has a lower frequency
than electromagnetic radiation B, then compared to B, the wavelength of A is
______________
LONGER
How many quantum numbers are needed to describe the energy state of an electron in an atom?
4
How many electrons are needed to fill each of the first four energy levels?
1st Energy Level = 2 electrons 2nd Energy Level = 8 electrons 3rd Energy Level = 18 electrons 4th Energy Level = 32 electrons
What are the colors of the visible spectrum from increasing wavelength
to decreasing wavelength?
Red, Orange, Yellow, Green, Blue, Indigo, Violet
What requires that electrons enter each orbital one at a time and with identical spins before any pairing can occur?
Hund’s Rule
What states that no two electrons in an atom can have exactly the same set of four quantum numbers?
Pauli’s Exclusion Principle
What is an octet?
An atom that has 8 outer shell electrons
Using the two equations, E = h and c = , derive an equation using E in terms of h, c and .
Then prove it.
E = h c =
Step 1: Solve for V
V = C
E = h(C/ )Step 2: Plug in v for v
Kg * m2 s2
= Kg * m2 * s * s2
m____ s * m
E h C
The End!The End!The End!The End!The End!The End!