Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
34 Cards in this Set
- Front
- Back
|
the general formula used to solve factor-label conversions
|
q+y=q+y sought
Given # x # + label you need / conversion factor |
|
|
the amount of space occupied by an object is called...
|
volume
|
|
|
the _______ of a substance relates the mass of the substance to its volume
|
density
|
|
|
40.0 cm3 sample of quartz has a density of 2.65 g/cm3. What is the mass of the quartz sample?
|
2.65g/cm3 x xg/ 40cm3
2.65 x 40 cm3= mass is 106g |
|
|
d is
|
d= m/v
|
|
|
mass is
|
m= d x v
|
|
|
volume is
|
v=m/d
|
|
|
d is measured in...
|
g/cm3
|
|
|
significant number rules for adding, sub, mult, and dividing
|
+-= least number after the decimal
x / = least total sig figs |
|
|
derived unit
|
kilo....deci...
|
|
|
isotopes of an element contain diff numbers of
|
neutrons
|
|
|
protium... of hydrogen
|
0 neutrons.... most common
|
|
|
rutherford concluded....
|
in atom most of the mass is in the nucleus
|
|
|
mass of neutron
|
about same as proton
|
|
|
a helium isotope consists of 2 protons, 2 electrons, and 2 neutrons... it's mass # is
|
4
|
|
|
what scientific discovery caused dalton's atomic theory to be altered?
|
the discovery of isotopes, and the invention of the cathode ray tube
|
|
|
oxygen can combine with carbon to form 2 compounds is an example of
|
law of multiple proportions
|
|
|
avagadro's theory
|
6.02 x 10'23
|
|
|
atomic mass
|
total # of protons plus neutrons in an atom
|
|
|
how you determine the identity of an atom
|
atomic mass
|
|
|
mass number
|
number of neutrons
|
|
|
finding average %
|
multiply atomic mass and percent of each element then add them together
|
|
|
speed of light
|
3 x 10'8
|
|
|
wavelength
|
distance b/t same pt of adjacent waves
|
|
|
photon
|
individual quantum of light
|
|
|
spectroscope
|
separates light into a spectrum
|
|
|
frequency
|
measured in hertz v
|
|
|
photoelectric effect
|
emission of electrons by metals with light on them
|
|
|
lyman series
|
ultraviolent wavelength in hydrogen spectrum
|
|
|
grount
|
lowest energy state of an atom
|
|
|
balmer series
|
visible wavelength in hydrogen spectrum
|
|
|
angular momentum quantum number
|
tells shape of the orbital
|
|
|
d orbitals
|
number of orbitals in a main energy leven n=1
|
|
|
spin quantum number
|
indicates spin states of an electron
|
