_______ is a shorthand notation showing the probable location of electrons in an atom.
Quantum Number
Electron Configuration
Repulsion
All the Above
True or False? Pauli Exclusion Principle states that 1.) No two electrons in the same atom can have the same set of 4 quantum numbers. 2.) Two electrons in the same orbital must have opposite spins.
When using letter designation, which letter do we begin with?
S
P
D
K
The Angular Momentum Quantum Number indicates
The number of sublevels possible in a mainshell
The orbital in which the electron is located
The sublevel in which the electron is located
denotes the mainshell location in an electron
True or False? The maximum number of electrons in each sublevel corresponds to the number of vertical columns in the respective block on the periodic table.
True or False? A region of space defined by a wave function that can hold two electrons is known as nucleus
______ indicates the orbital in which the electron is located
Spin Number
Magnetic Quantum Number
Orbital Number
Angular Momentum Quantum Number
A p sublevel can hold ____ electrons
4
7
3
6
What is the formula used to indicate the maximum numbers of electrons in a mainshell?
2n^2
2n
2n^3
2n^4
State the correct sublevel number with sublevel letter designations
1-s 2-p 3-d 4-f
0-s 1-p 2-d 3-f
0-f 1-d 2-p 3-s
0 1 2 3
True or False ? Aufbau Principle states electrons fill orbitals from low energy to high energy.
True or False? Pauli Exclusion Principle states that each orbital in a sublevel must have one electron before they begin to pair up
Which of the following principles states it is fundamentally impossible to know precisely both the velocity and position of an electron at the same time
Heisenberg Uncertainty Principle
Aufbau Principle
Pauli Exclusion Principle
Octet Rule
Which of the following follows the Pauli Exclusion Principle?
No two electrons in the same atom can have the same set of 4 quantum numbers
Each orbital in a sublevel must have one electron before they begin to pair up
Two electrons in the same orbital must have opposite spins
Atoms are most stable with eight electrons in the outer shell(valence shell)
True or False? The Octet Rule states that atoms are most stable with eight electrons in the outer shell.
True or False? Spin Quantum Number indicates the direction of spin of the electron
What describes how a property changes going across a period or down a group
period trend
ionization energy
atomic radius
shielding effect
True or False? Periodic Trends can be explained in terms of Coulomb's Law
______ 1/2 the distance between the nuclei of diatomic or the distance between the nucleus of an atom and the 90% probability surface of the electron cloud.
Ionization Energy
Coulomb's Law
Periodic Trend
Atomic radius
True or False? Electron affinity is the energy required to remove the least tightly held e- from an atom.
True or False? Atomic Radius decreases across a period and increases down a group
_______ __________ occurs when core electrons shield the valence electrons from the pull of the nucleus.
Shielding Effect
Gravitational Pull
Atomic Radius
What is the Periodic Trend for Ionization Energy?
Increases across a period and down a group
Decreases across a period and increases down a group
Increases across a period and decreases down a group
Decreases both across a period and down a group
What is the first exception in the general ionization trend across a period?
1st exception occurs at group 3A. There is a small decrease in ionization energy because the e- being removed is in a p-sublevel that is higher energy than the e- being removed from the s-sublevel of the proceeding element.
1st exception occurs at 2A. There is a small decrease in ionization energy because the e- being removed is in a p-sublevel that is higher energy than the e- being removed from the s-sublevel of the proceeding element.
1st exception occurs at 3A. There is an increase in IE because the e- being removed is paired e- that is being repelled by the other e- in the orbital.
1st exception occurs at 5A. There is a small decrease in IE because the e- being removed is paired e- that is being repelled by the other e- in the orbital.
Cation are positively charged ion while anions are negatively charged ions
True or False? Electron Affinity are used to compare the attraction two atoms for a pair of shared electrons in a covalent bond.
What are the periodic trends in electronegativity?
Increases both across a period and down a group.
_______ _______ is the energy given off when a gaseous atom accepts an e-.
Electron Affinity
What are the Periodic Trends for Ionic Radius?
Ionic radius decreases down a group and increases across a period
Ionic Radius increases down a group and decreases across a period to Group 5A where it increases and then decreases again.
Ionic Radius increases both down a group and across a period
Ionic Radius decreases both down a group and across a period
True or False? Anions are larger than the atom they from from because of the gain of an electron
