anything that occupies space and has mass
matter
mass/volume
density
what atoms are in the nucleus and what are their charges?
proton (+), neutron (0)
spherical, starts at n=1, period #=n
s subshell
1 x 10 ^-9
more than one atom
molecule
273+C
Kelvin
opposite charges attract, like charges repel
electrostatic interaction
dumbell, starts at n=2, 3 orbitals, period #=n
p subshell
what is an exact number? how many sig figs?
results from counting, infinite
freedom of motion
flow
density of a substance/ density of water
specific gravity
left of metalloids, good conductors, solids
transition elements, period #-1=n, 5 orbitals
d subshell
1 x 10^-1
deci
not uniform throughout
heterogeneous mixture
F-32/1.8
C
group 1A, group 2A, group 7A, group 8A
alkali metals, alkaline earth metals, halogens, noble gases
how much energy is required to remove a valence electron, increases to the right and increases up
ionization energy
when a decimal is there
can you push the particles closer together?
compressibility
dosage/stock
dosage problem
mass #= ?
atomic # =?
AX=
BX=
XC =
# p + #n
# p
mass #
atomic #
charge
located in the outer most shell (n)
adding/subtracting sig fig rule
furthest to the left (place number)