CCP Chemistry 121, Brauner Test 2

Question 1

What is the speed of light?

Answer 1

C = 3.0x10⁸ m/s

Question 2

What is Planck’s constant?

Answer 2

h = 6.626x10^-34 J·s

Question 3

What is Avagadro’s number?

Answer 3

N = 6.022x10²³ /mol

Question 4

What is a wavelength?

Answer 4

λ = the distance between two successive corresponding points

Question 5

c = ****λ · **v

Answer 5

λ = c / **v

c = **↑λ · ↓v**

Question 6

Ionization Energy

Answer 6

energy requried to remove 1 e^-

Question 7

Emission

Answer 7

The release of radiation when an e` goes from a higher energy state to a lower energy state

Question 8

Energy

Answer 8

Ability to do work

Question 9

Potential Energy

Answer 9

energy associated with matter due to it’s position

Question 10

Kinetic Energy

Answer 10

energy associated with a body in motion

Question 11

Velocity

Answer 11

V=distance/time

Question 12

Frequency

Answer 12

“nu”, Number of ocillations/seconds

Question 13

Charge of an electron

Answer 13

1.6x10^-19 Coulombs

Question 14

Absorption

Answer 14

The use of radiation to promote an e` from a lower energy state to a higher energy state.

Question 15

Ocillating electric charges…

Answer 15

…produce an electromagnetic wave.

Question 16

Alternating current

Answer 16

the flow of electric charge periodically reverses direction

Question 17

Direct Current

Answer 17

the flow of electric charge goes in one direction

Question 18

Alpha Partical

Answer 18

+₂He ²⁺

Helium nucleus

Question 19

Beta Particle

Answer 19

e~

(negative charge)

Question 20

Gamma Particle

Answer 20

**Photon - **

neutral charge

highest energy

Question 21

Powers of 10

Answer 21

Moving decimal to the left?

Positive exponent.

Moving decimal to the right?

⇒Negative exponent.

Question 22

K.E. =

Answer 22

K.E.=1/2mv²

Question 23

Electrochemistry

Answer 23

A branch of physical chemistry that studies chemical reactions at the interface of an electrode and an ionic conductor.

Question 24

Planck/Einstein Equation

Answer 24

l change in E I = hc/wavelength

Question 25

Chromium

Answer 25

Correct: Cr = [Ar]4s¹3d⁵

Predicted: Cr = [Ar]4s²3d⁴

Question 26

Copper

Answer 26

Correct: Cu = [Ar]4s¹3d¹⁰

Predicted: Cu = [Ar]4s²3d⁹

Question 27

Hund’s Rule:

Answer 27

e~s enter orbitals of the same sublevel (p,d, or f) singley until each orbital contains 1e~, then pairing occours.

Question 28

Diamagnetic

Answer 28

lacking unpaired e~s

Question 29

Paramagnetic

Answer 29

Having unpaired e~s

Question 30

Main group atoms

Answer 30

These atoms are characterized by the filling (the last e~ by prediction) of S (2e~) and P (6e~) sublevels (8 main groups).

Question 31

Main Group Atoms

Answer 31

thoses atoms characterized by the filling (the last e~ by prediction) of “s” and “p” sublevels

Question 32

Transition Metals

Answer 32

those atoms characterized by the filling of “d” sublevels

Question 33

Lanthanides

Answer 33

those atoms characterized by the filling of the “4f” sublevel

Question 34

**Actinides **

Answer 34

Those atoms characterized by the filling of th e”5f” sublevel

Question 35

Metal

Answer 35

An atom that tends to loose 1 or more e~’s

“metalic”

m⁺ + e~

Question 36

Non-Metal

Answer 36

An atom that tends to gain 1 or more e~’s

“non-metalic”

x + e~ → x^-

Question 37

Nobel Gas

Answer 37

An atom that neither tends to loose nor tends to gain an e~

Question 38

Atom Size

Answer 38

Radii of an atom increases going down the table and decreases going from left to right.

Question 39

Ionization Energy

Answer 39

(kJ/mol) it takes to ionize an atom increases going from left to right. Ionization energy decreases going from top to bottom of table.

Question 40

Metallic character

Answer 40

Metallic character decreases going from left to right. Metallic character increases going down the periodic table.

Question 41

Electronegativity

Answer 41

Electron affinity increases going left to right, and increases going from bottom to top of periodic table.

Question 42

Principal Quantum #

Answer 42

n = Distance from nucleus

1,2,3,4,5,6,7

Question 43

Azmuthal Quantum #

Answer 43

l = Shape of orbital

s,p,d,f

Question 44

Magnetic Quantum #

Answer 44

m_l = Orientation of orbital

Question 45

**Spin Quantum # **

Answer 45

m_s= Spin of electron,

m_s= +1/2 or

m_s=-1/2

Question 46

k_{B =}

Answer 46

2.179X10^-18J

Question 47

Ionization Energy Formula

(H, He⁺, Li²⁺)

Answer 47

E_{n =}-k_B• z² / n²

Question 48

e~ Density

Answer 48

The probability of finding an e~ in a given space summarized by the wave function

Question 49

Amplitude

Answer 49

The maximum vibration of an ocillation, measured from the position of equilibrium

Question 50

Sublevel

Answer 50

“l” a description of the nodal properties of an e~, the nodal shape

Question 51

Space

Answer 51

Volume

Question 52

n

Answer 52

Principal quantum number. 1,2,3,4,5,6, and 7

Question 53

n

Answer 53

** Principal quantum number.**

1,2,3,4,5,6, and 7.

Question 54

l

Answer 54

Azimuthal quantum #.

s=2e~

p=6e~

d=10e~

f=14e~

Question 55

m_l

Answer 55

Orientation. Magnetic quantum #

1, 3, 5, 7

Question 56

m_s

Answer 56

Spin quantum #.

+1/2

**or **

-1/2

Question 57

Outer e~ ‘s

Answer 57

The e~ ‘s in the highest occupied level.

Question 58

Chromium

Answer 58

Cr=[Ar] 4s¹3d⁵

Question 59

K

Answer 59

K=[Ar]4s¹

Question 60

Ca

Answer 60

Ca=[Ar]4s²

Question 61

Energy in a Photon

Answer 61

E = hv

Question 62

Formula for Ionization Energy

Answer 62

E_n = - 2.179 x 10^-18x (z)² / (n)²

Question 63

Charge of an Electron

Answer 63

1.6 x 10^-19 Coulombs