20359586
Descripción
Test por kadyn drummond, actualizado hace más de 1 año
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Creado por kadyn drummond
hace casi 5 años
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Pregunta 1
Pregunta
_______ is a shorthand notation showing the probable location of electrons in an atom.
Respuesta
-
Quantum Number
-
Electron Configuration
-
Repulsion
-
All the Above
Pregunta 2
Pregunta
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.
Respuesta
- True
- False
Pregunta 3
Pregunta
When using letter designation, which letter do we begin with?
Respuesta
-
S
-
P
-
D
-
K
Pregunta 4
Pregunta
The Angular Momentum Quantum Number indicates
Respuesta
-
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
Pregunta 5
Pregunta
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.
Respuesta
- True
- False
Pregunta 6
Pregunta
True or False?
A region of space defined by a wave function that can hold two electrons is known as nucleus
Respuesta
- True
- False
Pregunta 7
Pregunta
______ indicates the orbital in which the electron is located
Respuesta
-
Spin Number
-
Magnetic Quantum Number
-
Orbital Number
-
Angular Momentum Quantum Number
Pregunta 8
Pregunta
A p sublevel can hold ____ electrons
Respuesta
-
4
-
7
-
3
-
6
Pregunta 9
Pregunta
What is the formula used to indicate the maximum numbers of electrons in a mainshell?
Respuesta
-
2n^2
-
2n
-
2n^3
-
2n^4
Pregunta 10
Pregunta
State the correct sublevel number with sublevel letter designations
Respuesta
-
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
Pregunta 11
Pregunta
True or False ?
Aufbau Principle states electrons fill orbitals from low energy to high energy.
Respuesta
- True
- False
Pregunta 12
Pregunta
True or False?
Pauli Exclusion Principle states that each orbital in a sublevel must have one electron before they begin to pair up
Respuesta
- True
- False
Pregunta 13
Pregunta
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
Respuesta
-
Heisenberg Uncertainty Principle
-
Aufbau Principle
-
Pauli Exclusion Principle
-
Octet Rule
Pregunta 14
Pregunta
Which of the following follows the Pauli Exclusion Principle?
Respuesta
-
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)
Pregunta 15
Pregunta
True or False?
The Octet Rule states that atoms are most stable with eight electrons in the outer shell.
Respuesta
- True
- False
Pregunta 16
Pregunta
True or False?
Spin Quantum Number indicates the direction of spin of the electron
Respuesta
- True
- False
Pregunta 17
Pregunta
What describes how a property changes going across a period or down a group
Respuesta
-
period trend
-
ionization energy
-
atomic radius
-
shielding effect
Pregunta 18
Pregunta
True or False?
Periodic Trends can be explained in terms of Coulomb's Law
Respuesta
- True
- False
Pregunta 19
Pregunta
______ 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.
Respuesta
-
Ionization Energy
-
Coulomb's Law
-
Periodic Trend
-
Atomic radius
Pregunta 20
Pregunta
True or False?
Electron affinity is the energy required to remove the least tightly held e- from an atom.
Respuesta
- True
- False
Pregunta 21
Pregunta
True or False?
Atomic Radius decreases across a period and increases down a group
Respuesta
- True
- False
Pregunta 22
Pregunta
_______ __________ occurs when core electrons shield the valence electrons from the pull of the nucleus.
Respuesta
-
Shielding Effect
-
Gravitational Pull
-
Ionization Energy
-
Atomic Radius
Pregunta 23
Pregunta
What is the Periodic Trend for Ionization Energy?
Respuesta
-
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
Pregunta 24
Pregunta
What is the first exception in the general ionization trend across a period?
Respuesta
-
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.
Pregunta 25
Pregunta
Cation are positively charged ion while anions are negatively charged ions
Respuesta
- True
- False
Pregunta 26
Pregunta
True or False?
Electron Affinity are used to compare the attraction two atoms for a pair of shared electrons in a covalent bond.
Respuesta
- True
- False
Pregunta 27
Pregunta
What are the periodic trends in electronegativity?
Respuesta
-
Increases across a period and decreases down a group
-
Decreases across a period and increases down a group
-
Decreases both across a period and down a group
-
Increases both across a period and down a group.
Pregunta 28
Pregunta
_______ _______ is the energy given off when a gaseous atom accepts an e-.
Respuesta
-
Shielding Effect
-
Electron Affinity
-
Ionization Energy
-
Atomic Radius
Pregunta 29
Pregunta
What are the Periodic Trends for Ionic Radius?
Respuesta
-
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
Pregunta 30
Pregunta
True or False?
Anions are larger than the atom they from from because of the gain of an electron
Respuesta
- True
- False
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