chemistry exam Flashcards
what did debroglie discover
wave particle duality
what was planks contribution
the concept of a quanta of energy
what did schrodinger contribute
the wave equation
what did bohr use to discover energy levels
line diagram
teh quantum mechanical model of the atom treats the electron like ____
a wave
what are the number of neutrons in a c-14 isotope
8
what colour of light emitted with the largest electron transitions would be __
violet
what did pauli say
said that two electrons in the same orbital must have opposite spins
the set of quantum numbers that is possible is
n=1, l=1, m1=-1, m2=-1/2
n=1, l=0, m1=0 m2=-1/2
n=2, l=1, m1=2, m2=1/2
B
what did albert einstein discover
the photoelectric effect
what elements are paramagnetic
al and pt
hunds rule
one electron must occupy each orbital before a second electron occupys an orbital
what is the principle quantum number
describes the energy shell
what elements use ferromanetism
ni fe and co
electronegativity
> .4 non polar covalent <0.4 polar covalent <1.8 ionic bond
non metals tend to ____
gain electrons
what is the heisenberg uncertainty principle
determined that it is impossible to predict the exact location of an electron
a unit of light energy is called ____
a photon
the magnetic quantum number describes the
orientation of the orbital in space
the total number of orbitals present in n=3
9
which device uses electrons at high speed to bombard a target
x rays
which technology produces monochromatic light
lazers
which plastic can be recycled in sault ste marie
number 1 and 2 lowdensity polyethene
whats another name for teflon
polytetraflouroethene
