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

## Footnote **Chromium**

Answer 25

**Correct: Cr = [Ar]4s¹3d⁵** **Predicted: Cr = [Ar]4s²3d⁴**

Question 26

## Footnote **Copper**

Answer 26

## Footnote **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^-18 J**

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^-18 x (z)² / (n)²**

Question 63

**Charge of an Electron**

Answer 63

**1.6 x 10^-19 Coulombs**