Chem 108 Flashcards
mastery
1
Q
B
A
Boron, semi metal
2
Q
Si
A
Silicon, semi metal
3
Q
Ge
A
Germanium, semi metal
4
Q
As
A
Arsenic, semi metal
5
Q
Sb
A
Antimony, semi metal
6
Q
Te
A
Tellurium, semi metal
7
Q
At
A
Astatine, semi metal
8
Q
Giga
A
10^9
9
Q
Mega
A
10^6
10
Q
Kilo
A
10^3
11
Q
deci
A
10^-1
12
Q
centi
A
10^-2
13
Q
milli
A
10^-3
14
Q
micro
A
10^-6
15
Q
nano
A
10^-9
16
Q
pico
A
10^-12
17
Q
1in=?
A
2.54cm
18
Q
1ft=?
A
12in
19
Q
1mi=?
A
5280ft
20
Q
1yd=?
A
3ft
21
Q
1kg=?
A
2.205lbs
22
Q
1 mol of particles=?
A
6.02X10^23 particles
23
Q
1gal=?
A
3.785L
24
Q
physical property?
A
A characteristic of matter that can be observed and measured without changing the chemical identity
25
chemical property?
A characteristic of matter that can only be measured or observed by performing a chemical reaction or change
26
speed constant (c) =
3.00X10^8 m/s
27
Planks Constant (h)
6.63X10^-34 j X s photon or quantum of light
28
(speed of light)c=
wavelength (lambda) X frequency (Nu)
29
(amount of energy) E=
planks constant (h) X Frequency (v) Nu
30
wavelength E=
hc/wavelength
31
photoelectric effect
electronically charged atoms are released from or within a material when it absorbs electromagnetic radiation
32
atomic emission
when atoms are exposed to a high energy source their electrons are excited to higher energy levels. As electrons return to their ground state, they releaser photons resulting in the emission of light
33
Diffraction and significance
the diffraction of a light through two slits separated by a distance separable to the wavelength of light results in an interference pattern an inherent property of light.
| helps us relise electrons have a wave like tendancy
34
Bohr Model importance
describes the property of atomic electrons in terms of set allowed (possible values)
35
emission spectrum importance
emission can allow us to identify elements because the white light gets separated into different wavelength the light then gets separated which results in a series of bright lines called the emission spectrum
36
de Broglie wavelength
the wave nature of an electron, showed us that electrons can be a wave and particle with the diffraction experiment
37
Heinsberg
the more accurately we know the position of an electron the less likely we will know its velocity vice versa wavelength = planks constant X velocity
38
electron affinity
the amount of energy that is released when 1 mole of gas-phase atoms accepts 1mole of electrons and become 1 mole of gas-phase anions
39
the more stable an atom is the higher the ionization energy and the more negative the electron affinity will; be
true
40
principle quantum number
n, determines size and energy of an orbital possible values: 1,2,3.....
41
angular quantum number
l, determines the shape of the orbital, possible values: 0,1,2... (n-1)
42
magnetic quantum number
m little L, integer that specifies the orientation of the orbital, values, includes 0, -1,1 if L=0 then possible value of m little L=0
43
Value of l = 0 then the letter destination =
l=0 ,s
l=1,p
l=2,d,
l=3, f
44
coulombs law
the magnitude of the electrostatic force of attraction or repulsion between two electrically charged bodies is directly proportional to the product of the charge of the charged bodies and inversely proportional to the square of the distance between the center of the charged bodies.
45
ionixation energy 1
the amount of energy that must be added to 1 mole added to yeild 1 mole of gas-phase cations and 1 mole of electrons
46
ionization energy 2
the amount of energy that must added to 1 mole of gas-phase cations to yield 1 mole
47
1. the amount of shielding that the new outermost electron experiences is 2. that experienced by the old outermost electron before it was lost, and the nucleus ZEFF
1. less than 2. increases
48
when an atom becomes an anion
when an atom receives an new electron the electron will experience more shielding and effective nuclear charge of the electron decreases and force of attraction words the nucleus decreases therefore the radius increases.
49
