kadyn drummond
Quiz by , created more than 1 year ago

A quick test going over the Quantum Theory

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kadyn drummond
Created by kadyn drummond almost 5 years ago
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Quantum Theory Test

Quantum Theory Test

Question 1 of 30

1

_______ is a shorthand notation showing the probable location of electrons in an atom.

Select one or more of the following:

  • Quantum Number

  • Electron Configuration

  • Repulsion

  • All the Above

Explanation

Question 2 of 30

1

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.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 30

1

When using letter designation, which letter do we begin with?

Select one of the following:

  • S

  • P

  • D

  • K

Explanation

Question 4 of 30

1

The Angular Momentum Quantum Number indicates

Select one of the following:

  • 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

Explanation

Question 5 of 30

1

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.

Select one of the following:

  • True
  • False

Explanation

Question 6 of 30

1

True or False?
A region of space defined by a wave function that can hold two electrons is known as nucleus

Select one of the following:

  • True
  • False

Explanation

Question 7 of 30

1

______ indicates the orbital in which the electron is located

Select one of the following:

  • Spin Number

  • Magnetic Quantum Number

  • Orbital Number

  • Angular Momentum Quantum Number

Explanation

Question 8 of 30

1

A p sublevel can hold ____ electrons

Select one of the following:

  • 4

  • 7

  • 3

  • 6

Explanation

Question 9 of 30

1

What is the formula used to indicate the maximum numbers of electrons in a mainshell?

Select one of the following:

  • 2n^2

  • 2n

  • 2n^3

  • 2n^4

Explanation

Question 10 of 30

1

State the correct sublevel number with sublevel letter designations

Select one of the following:

  • 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

Explanation

Question 11 of 30

1

True or False ?
Aufbau Principle states electrons fill orbitals from low energy to high energy.

Select one of the following:

  • True
  • False

Explanation

Question 12 of 30

1

True or False?
Pauli Exclusion Principle states that each orbital in a sublevel must have one electron before they begin to pair up

Select one of the following:

  • True
  • False

Explanation

Question 13 of 30

1

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

Select one of the following:

  • Heisenberg Uncertainty Principle

  • Aufbau Principle

  • Pauli Exclusion Principle

  • Octet Rule

Explanation

Question 14 of 30

1

Which of the following follows the Pauli Exclusion Principle?

Select one or more of the following:

  • 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)

Explanation

Question 15 of 30

1

True or False?
The Octet Rule states that atoms are most stable with eight electrons in the outer shell.

Select one of the following:

  • True
  • False

Explanation

Question 16 of 30

1

True or False?
Spin Quantum Number indicates the direction of spin of the electron

Select one of the following:

  • True
  • False

Explanation

Question 17 of 30

1

What describes how a property changes going across a period or down a group

Select one of the following:

  • period trend

  • ionization energy

  • atomic radius

  • shielding effect

Explanation

Question 18 of 30

1

True or False?
Periodic Trends can be explained in terms of Coulomb's Law

Select one of the following:

  • True
  • False

Explanation

Question 19 of 30

1

______ 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.

Select one of the following:

  • Ionization Energy

  • Coulomb's Law

  • Periodic Trend

  • Atomic radius

Explanation

Question 20 of 30

1

True or False?
Electron affinity is the energy required to remove the least tightly held e- from an atom.

Select one of the following:

  • True
  • False

Explanation

Question 21 of 30

1

True or False?
Atomic Radius decreases across a period and increases down a group

Select one of the following:

  • True
  • False

Explanation

Question 22 of 30

1

_______ __________ occurs when core electrons shield the valence electrons from the pull of the nucleus.

Select one of the following:

  • Shielding Effect

  • Gravitational Pull

  • Ionization Energy

  • Atomic Radius

Explanation

Question 23 of 30

1

What is the Periodic Trend for Ionization Energy?

Select one of the following:

  • 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

Explanation

Question 24 of 30

1

What is the first exception in the general ionization trend across a period?

Select one of the following:

  • 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.

Explanation

Question 25 of 30

1

Cation are positively charged ion while anions are negatively charged ions

Select one of the following:

  • True
  • False

Explanation

Question 26 of 30

1

True or False?
Electron Affinity are used to compare the attraction two atoms for a pair of shared electrons in a covalent bond.

Select one of the following:

  • True
  • False

Explanation

Question 27 of 30

1

What are the periodic trends in electronegativity?

Select one of the following:

  • 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.

Explanation

Question 28 of 30

1

_______ _______ is the energy given off when a gaseous atom accepts an e-.

Select one of the following:

  • Shielding Effect

  • Electron Affinity

  • Ionization Energy

  • Atomic Radius

Explanation

Question 29 of 30

1

What are the Periodic Trends for Ionic Radius?

Select one of the following:

  • 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

Explanation

Question 30 of 30

1

True or False?
Anions are larger than the atom they from from because of the gain of an electron

Select one of the following:

  • True
  • False

Explanation

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