Phase Changes/Intermolecular Forces/Heat Curves
The process in which only a very few of the molecules in a liquid have enough energy to vaporize.
Evaporation
What type of particles (solid,liquid,gas) DO NOT attract or repel each other?
Gas
elements in group 17
halogens
shows how many atoms of an element are in a molecule
subscript
Diamond and graphite are completely made of one element, what is that element?
carbon
Interactions in which polar molecules stick to each other like little magnets.
Dipole-dipole forces
motion of particles (travelling) and vibration
Kinetic energy
each orbital can hold ________ electrons
2
a complex molecule breaks down to make several simpler ones
decomposition
Helium balloons float because helium is _______ than air.
When something goes directly from the solid phase to the gas phase.
Sublimation
energy of arrangement of particles
Potential energy
transitional metals have more than one ____________ state
oxidation
when predicting products you do NOT _____ ______ ________ from reactant to products
carry over subscripts
Dry ice is the solid form of
carbon dioxide
The temp above which water cannot exist as a liquid.
Critical point
the movement of one material through another
diffusion
What does the atomic number tell us?
The _______ ________ determines whether or not a single replacement reaction will occur
activity series
Two letter from the alphabet do not appear on the periodic table, what are they?
J and Q
Solids in which atoms bond together covalently to form crystals
Covalent network solids
light molecules diffuse and effuse more _______ than heavy ones.
quickly
fill each orbital with one electron before doubling up is known as _______ rule
Hund's
shows the reacting species as ions and the products
either as ions or a precipitate
complete ionic equation
What is the rarest naturally occurring element?
Astantine