Atomic Structure

Question 1

Lanthanides

Answer 1

4f

Question 2

Chromium

Answer 2

[Ar]4s13d5

Question 3

Cooper

Answer 3

[Ar]4s13d9

Question 4

Half filled and fully filled orbitals have —— energy than any other state

Answer 4

Lower

Question 5

Paramagnetic

Diamagnetic

Answer 5

Parallel

Opposite

Question 6

Atomic mass

Answer 6

Equal to the mass number, the sum of an elements proton and neutrons

Question 7

Atomic weight

Answer 7

Weighted average of the naturally occurring isotopes of an element

Question 8

Nucleus

Answer 8

Contains the Protons and neutrons

Question 9

Atomic number

Answer 9

Number of protons in a given element

Question 10

3 isotopes of hydrogen

Answer 10

Protium, deuterium, and tritium

Question 11

High energy to low energy

Answer 11

Photon emitted

Question 12

Low energy to high energy

Answer 12

Absorb photon

Question 13

Quantum mechanical model

Answer 13

Electrons do not travel in a defined proviso rather are localized in orbitals

Question 14

Heisenberg uncertainty principle

Answer 14

Impossible to know both an electrons position and momentum exactly at the same time

Question 15

n
l
ml
ms

Answer 15

Average energy of a shell
Subshells within a given principal energy
Specifies the particular proviso within a sub shell where an electron is likely to be found at a given moment in time
Indicates spin orientation

Question 16

Hund’s rule

Answer 16

Subshells with multiple orbitals fill electrons so that every orbital in a subshell gets one electron before any of them gets a second

Question 17

Plank reaction

Answer 17

E=hf

Question 18

Bohr model (angular momentum of an electron)

Answer 18

L=nh/2pie

Question 19

Maximum number of electrons within a shell

Answer 19

2nraisedtothe2

Question 20

Maximum number of electrons with a subshell

Answer 20

4l+2