Quantum Numbers and Electron Configuration

Question 1

What are the 4 quantum numbers?

Answer 1

1. n
2. l
3. ml
4. ms

Question 2

What is the n (electron shell)?

Answer 2

principal quantum number values (main energy level)

Question 3

What is the l (subshell)?

Answer 3

orbital shape (ranges from 0 –> n-1)

Question 4

What is ms?
What can it be between?

Answer 4

the electron spin
ms –> can be either -1/2 or 1/2

Question 5

What is the ml?

Answer 5

the magnetic quantum number; tilt of orbit (angle)

Question 6

Pauli Exclusion Principal?

Answer 6

Each orbital can be in one orbital, but they have to have different spins; no 2 electrons can be in an atom

Question 7

Aufbau Principal

Answer 7

electrons will fill the orbitals in order of increasing value

Question 8

Hunds Rule?

Answer 8

All electrons in half filled orbitals in the same subshell will have the same spin

Question 9

Noble Gas Notation/Abbreviation: He

Answer 9

2 electrons

Question 10

Noble Gas Notation/Abbreviation: Ne

Answer 10

2p^6 - 10 electrons

Question 11

Noble Gas Notation/Abbreviation: Arg

Answer 11

3p^6 - 18 electrons

Question 12

Noble Gas Notation/Abbreviation: Kr

Answer 12

4p^6 - 36 electrons

Question 13

Noble Gas Notation/Abbreviation: Xe

Answer 13

5p^6 - 54 electrons

Question 14

Noble Gas Notation/Abbreviation: Rn

Answer 14

6p^6 - 86 electrons

Question 15

what is l = 0 mean for the orbital

Answer 15

s

Question 16

what is l = 1 mean for the orbital

Answer 16

p

Question 17

what is l = 2 mean for the orbital

Answer 17

d

Question 18

what is l = 3 mean for the orbital

Answer 18

f

Question 19

STUFF YOU HAVE TO KNOW: What is the electron configuration of Cr (include the Noble notation)? And why is it like this?

Answer 19

Electron Configuration: [Arg] 4s1 3d5
Why: its a d-block element

Question 20

STUFF YOU HAVE TO KNOW: What is the electron configuration of Mo (include the Noble notation)? And why is it like this?

Answer 20

Electron Configuration: [Kr] 5s1 4d5
Why: its a d-block element

Question 21

STUFF YOU HAVE TO KNOW: What is the electron configuration of W (include the Noble notation)? And why is it like this?

Answer 21

Electron Configuration: [Arg] 6s2 4f14 5d4
Why: its a d-block element

Question 22

true or false: having a completely filled d subshell is more stable along with it being half filled

Answer 22

True

Question 23

What is the name of group 17?

Answer 23

Halogens

Question 24

What is the name for group 18?

Answer 24

Noble Gases