Lesson 5.2: The Quantum Model Of An Atom

Question 1

Who proposed that light and atoms might exhibit the same properties?

Answer 1

Louise de Broglie and Erwin Schrödinger

Question 2

Who came up with a new model for the hydrogen atom through the use of mathematical concepts?

Answer 2

Schödinger

Question 3

Who formulated the “uncertainty principle”?

Answer 3

Werner Heisenberg

Question 4

The uncertainty principle states…..

Answer 4

“It is important to determine both the momentum and the position of an electron at the same time accurately”

Question 5

Rapidly orbiting electrons can be represented by?

Answer 5

Electron clouds

Question 6

Believed to be the most mysterious particle in an atom because of its location.

Answer 6

Electron

Question 7

The location on atom depends on the…?

Answer 7

Amount of energy it has

Question 8

Lowest energy/energy state

Answer 8

Ground state

Question 9

The highest energy state farthest from the nucleus.

Answer 9

Excited state

Question 10

Last/the energy level where the last distributed electron(s) are located is…?

Answer 10

The valence shell

Question 11

Closed shell

Answer 11

Complete valence electrons tend to be stable

Question 12

A region around the nucleus of an atom.

Answer 12

Orbital

Question 13

SPDF

Answer 13

Sharp, principal, diffused, fundamental

Question 14

Electron configuration

Answer 14

A shorthand representation of how electrons are located within orbitals, levels, and sublevels

Question 15

The electrons occupying the highest energy level in an atom are called..?

Answer 15

Valence electrons

Question 16

This principle states that only a maximum of two electrons can occupy an orbital

Answer 16

Pauli Exclusion Principle

Question 17

This principle states that for a set of orbitals, one electron must fill up each orbital until all the orbitals contain one electron with parallel spin.

Answer 17

Hund’s Rule

Question 18

Principle states that electrons fill first the orbitals of the lowest energy until any added electron occupy the available orbital of higher energy.

Answer 18

Aufbau (a German word that means “building up or construction”)

Question 19

Paramagnetism

Answer 19

The atom that contains unpaired electrons, drawn to a magnetic field

Question 20

Diamagnetic

Answer 20

All electrons of the atom are paired, weakly repelled by magnetic field

Question 21

Quantum Numbers

Answer 21

Used to describe the position and energy of electrons in an orbit

Question 22

The new model of the atom of Schrödinger that can be applicable to other atoms.

Answer 22

The Quantum (wave) Mechanical Model of the Atom