Quiz 2 Unit 3

Question 1

Heisenberg Uncertainty Principle

Answer 1

It is impossible to know where an electron is and how fast it is at any given time

Question 2

Arrangement of Electrons

Answer 2

1. Principle energy level or principle quantum number
2. Sublevel
3. Orbital
4. Electrons spin

Question 3

Principle Energy Level/Principle Quantum Number

Answer 3

Cooresponds to period/row on periodic table

Question 4

Sublevels

Answer 4

1. S
2. S, P
3. S, P, D
4. S, P, D, F

Question 5

Sublevel S

Answer 5

Spherical
One orbital

Question 6

Sublevel P

Answer 6

Dumbell
Three orbitals each occupying a different axis

Question 7

Sublevel D

Answer 7

Clover
Five orbitals

Question 8

Sublevel F

Answer 8

Flower
Seven orbitals

Question 9

Further Sublevels

Answer 9

G, H, I, K
Add two orbitals

Question 10

Orbitals

Answer 10

Different orientation of shapes within a sublevel
Can only hold two electrons with opposite spins

Question 11

Electrons Spin

Answer 11

Every orbital regardless of type can hold two electrons, each opposing each other

Question 12

Writing Electron Configurations Rules

Answer 12

1. Aufbau Principle
2. Pauli Exclusion Principle
3. Hund’s Rule

Question 13

Aufbau Principle

Answer 13

Filling up
Electrons will occupy the lowest energy first

Question 14

Pauli Exclusion Principle

Answer 14

Restriction on the placement of electrons in the same orbital
If two electrons occupy the same orbital, they must have opposite spins
A maximum of two electrons can fill an orbit if they have opposite spins

Question 15

Hund’s Rule

Answer 15

Electrons are distributed among orbitals of the same sublevel when there is more than one way to distribute them
Electrons will fill equal level orbitals until each one has one before doubling up

Question 16

Writing Electron Configuration Types

Answer 16

1. Orbital diagram, most information
2. Electron configuration, standard notation/long form
3. Noble gas notation, short form

Question 17

Row/Period

Answer 17

Energy level
Coefficient on last sublevel

Question 18

Block

Answer 18

Highest sublevel

Question 19

Column in Block

Answer 19

Valence electron
Exponent on highest energy level

Question 20

Exceptions

Answer 20

Column 11, 6 moves s to d to make stable
Can’t write row one with noble gas
D doesn’t count as valence electrons
D block is always an energy level lower

Question 21

Noble Gas Notation

Answer 21

Last column are noble gases
Remove largest noble and replace with atomic symbol

Question 22

Octet VS Duet

Answer 22

Eight valence electrons for stability, electrons move lower amount
Hydrogen, helium, lithium, berylium

Question 23

Isoelectronic Series

Answer 23

Ions with same electron nconfiguration

Question 24

Unpaired

Answer 24

Electrons in an orbital alone