Chapter 4: Light

Question 1

What is Light?

Answer 1

Light is a form of Electromagnetic radiation

Question 2

What is Electromagnetic Radiation?

Answer 2

Energy found in photons, carried in waves

Question 3

What is the Electromagnetic Spectrum?

Answer 3

A spectrum of types of light

Question 4

What type of light has the lowest frequency & the longest wavelength?

Answer 4

TV / Radio waves

Question 5

What type of light has the highest frequency & the shortest waves?

Answer 5

Gamma Rays

Question 6

At what wavelength is light visable to the human eye?

Answer 6

Between 10^5 and 10^7 meters long

Question 7

What is Wavelength (λ)?

Answer 7

The distance between two equivalent peaks of a wave

Question 8

What is Frequency (V)?

Answer 8

How many waves (hertz) pass a point per second.

Question 8

What is light commonly described by?

Answer 8

Its frequency, wavelength, and energy.

Question 9

What is a flame test?

Answer 9

A test showing what colors metal ion emits when heated.

Question 10

What is White Light?

Answer 10

Light that has a spectrum of many colors, some of which are not visable to the human eye.

Question 11

What is Elemental Light?

Answer 11

Light that emits from a specific element

Question 12

What is the Bohr Model?

Answer 12

An early model of the structure of an atom, created in 1913 by Niels Bohr.

Question 13

Ground State is found when what occurs?

Answer 13

When all electrons in an atom reaches the lowest energy level.

Question 14

What are the main points of the Bohr Model?

Answer 14

Electrons only occupy specific energy levels, and can jump between them

Question 15

What did the Bohr Model Explain about the atom?

Answer 15

It explained some properties of main group elements, as well as the hydrogen line spectrum.

Question 16

What did the Bohr Model not explain about the atom?

Answer 16

It did not explain the properties of transition elements, or the complex line spectrum.

Question 17

What is the Quantum Model?

Answer 17

A modern model of the atom created by Einstein in the 1920s-30s.

Question 18

What is the purpose of the Quantum Model?

Answer 18

To give probable locations of electrons in a atom

Question 19

What is another name for Photons?

Answer 19

Quanta

Question 20

What are the Main Ideas of the Quantum Model?

Answer 20

The Uncertainty Principle and the wave nature of electrons.

Question 21

What is Heisenberg’s Uncertainty Principle?

Answer 21

It is impossible to know the exact energy and location of a particle at the same time.

Question 22

What is an Energy Level?

Answer 22

Parts of an atom that holds electrons; the higher the level the more electrons can be held

Question 23

How many electrons are found within a lvl 1 energy level?

Answer 23

2 Electrons

Question 24

How many electrons are found within energy level 2?

Answer 24

8 Electrons

Question 25

How many electrons are found with an energy level of 3?

Answer 25

18 Electrons

Question 26

How many electrons are found within a energy level of 4?

Answer 26

32 Electrons

Question 27

What sub-levels can be found within a energy level.

Answer 27

S, P, D, F

Question 28

How many orbitals does sub-level s contain?

Answer 28

1 orbital

Question 29

How many orbitals does sub-level p contain?

Answer 29

3 orbitals

Question 30

How many orbitals does sub-level d contain?

Answer 30

5 orbitals

Question 31

How many orbitals does sub-level f have?

Answer 31

7 obitals

Question 32

Do the electrons in a orbital stack on top of each other when increasing in size?

Answer 32

Yes, the electrons within an orbital stack as the sub level increases.

Question 33

What is a rule of an orbital?

Answer 33

A single orbital can only hold up to 2 electrons

Question 34

What are the rules of an electron?

Answer 34

Electrons have a magnetic field called spin, and electrons with opposite spins pair together.

Question 35

What is they Electron Configuration for Hydrogen?

Answer 35

1s^1

Question 36

What is the electron Configuration of Helium?

Answer 36

1s^2

Question 37

What is the electron Configuration of Oxygen?

Answer 37

1s^2 2s^2 2p^2

Question 38

What is the Electron Config Order?

Answer 38

1s 2s 2p 3p 4s 3d 4p 5s 4d 5p

Question 39

Hund's Rule states what?

Answer 39

If empty orbitals of the same energy are available, electrons will singly occupy an orbital than being paired together.

Question 40

What is a Valence Level?

Answer 40

The highest occupied electron energy level

Question 41

What is the Valence Shell?

Answer 41

Electrons in the highest energy level

Question 42

What determines a elements reactivity?

Answer 42

How many electrons are in the highest available energy level

Question 43

How many electrons are in a valence level?

Answer 43

8

Question 44

Where do reactions occur?

Answer 44

Valence Shell

Question 45

The Octet Rule states..

Answer 45

An atom is stablized by having its highest-occupied energy level filled

Question 46

What are the core electrons?

Answer 46

1s^2 2s^2 2p ^6

Question 47

What is shorthand for the core electrons?

Answer 47

[NE]

Question 48

More electrons equal

Answer 48

Higher Reactivity