Chapter5

Question 0

Dalton

Answer 0

An atom is a solid sphere

Question 1

Democritus

Answer 1

Atoms are tiny and indivisible

Question 2

Thomson

Answer 2

Plumb pudding

Discovered electrons

Question 3

Rutherford

Answer 3

Gold foil

Discovered nucleus

Question 4

Bohr

Answer 4

Said that electrons orbit on a path/energy levels

Question 5

Schodinger

Answer 5

Electron cloud/most likely place to find an electron/quantum mechanical model

Question 6

What is n?

Answer 6

The principle energy level

Question 7

If n=x

How many sub levels?

Answer 7

X (same)

Question 8

If n=1

Type of orbitals (sub levels)

Answer 8

1s

Question 9

If n=2

Type of orbitals (sub levels)?

Answer 9

2s

2p

Question 10

Order of sub levels

Answer 10

Spdf

Question 11

Electrons in s

Answer 11

2

Question 12

Electrons in p

Answer 12

6

Question 13

Electrons in d

Answer 13

10

Question 14

Electrons in f

Answer 14

18

Question 15

In 3d^5

What 3?

Answer 15

Energy level/ quantum number

Question 16

In 3d^5

What is d?

Answer 16

Sub level/orbital

Question 17

In 3d^5

What is 5

Answer 17

Number of electrons in that sub level

Question 18

When an atom absorbs energy it…

Answer 18

Electrons go to a higher energy level (excited state)

Question 19

What happens when electrons go from excited to ground state?

Answer 19

Release energy in the form of light

Question 20

The augbau principle

Answer 20

Electrons occupy the lowest energy levels first

Question 21

Hund’s rule

Answer 21

The electrons occupy the same spin before doing opposite spin

Question 22

Pauli exclusion principle

Answer 22

An atomic orbital may describe at most 2 electrons

Question 23

Quantum

Answer 23

The amt of energy required to move an electron from one energy level to another

Question 24

Quantum mechanical model

Answer 24

The modern description of the electrons in an atom (from shrodinger)

Question 25

Atomic orbital

Answer 25

A region in space in which there is a high probability of finding an electron

Question 26

Electron configurations

Answer 26

The way electrons are artanged in various orbitals around the nuclei of an atom

Question 27

Amplitude

Answer 27

Crest to center

Top to line

Question 28

Wavelength

Answer 28

Represented by Greek symbol

Length between two crests

Question 29

Frequency

Answer 29

(Represented by v)

Number of waves that pass per time unit

Question 30

Atomic emission spectrum

Answer 30

Frequencies of light emitted by an element separate into discrete lines

Question 31

Photons

Answer 31

Light quanta

Question 32

Heisenberg uncertainty principle

Answer 32

It is impossible to know exactly both the velocity and position of a particle at the same time