sub-atomic
particle in nucleus without an electric charge
what is a neutron?
has an indefinite shape but definite volume
what is a liquid?
the horizontal rows of the periodic table
what are periods?
when a gas loses energy and becomes a liquid
what is condensation?
sub-atomic particle with a charge and a mass of 1 amu
what is a proton?
ability to be drawn into a wire
ductility
has a definite shape and volume
what is a solid?
number of valence electrons almost all elements tend to acquire
what is 8?
change that occurs when the particles at the surface of a liquid gain energy and enter the atmosphere?
what is evaporation?
a negative particle in the outside energy level
what is a valence electron?
the amount of mass a substance has in a given volume
what is density?
most reactive group with less than 6 valence electrons
what is group 1?
change from solid directly to gas
what is sublimation?
location of most of the mass in an atom
what is the nucleus?
variable that increases as the mass of a substance increases
what is volume?
period 2 element that has more than 4 protons, less than 4 valence e-
what is Boron?
a change that occurs when a substance reaches the point where attractions of particles are overcome and they begin to slide past each other
what is melt?
2 or more protons do this to each other
What is repel?
ability to rearrange atoms into new compounds including carbon ash, smoke, and CO2
what is flammability?
Besides valence electrons and increasing numbers of protons, this is the third way the periodic table is organized
what is repeating properties?
shape of a line graph representing a phase change for a substance
what is a flatline?