Exam 1 vocab and concepts

matter

100

anything that occupies space and has mass

matter

200

more than one atom

molecule

300

freedom of motion

flow

400

not uniform throughout

heterogeneous mixture

500

can you push the particles closer together?

compressibility

formulas

100

mass/volume

density

200

273+C

Kelvin

300

density of a substance/ density of water

specific gravity

400

F-32/1.8

C

500

dosage/stock

dosage problem

atoms

100

what atoms are in the nucleus and what are their charges?

proton (+), neutron (0)

200

opposite charges attract, like charges repel

electrostatic interaction

300

left of metalloids, good conductors, solids

metal

400

group 1A, group 2A, group 7A, group 8A

alkali metals, alkaline earth metals, halogens, noble gases

500

mass #= ?

atomic # =? 

^AX=

_BX=

X^{C =}

# p + #n

# p

mass #

atomic #

charge

periodic table

100

spherical, starts at n=1, period #=n

s subshell

200

dumbell, starts at n=2, 3 orbitals, period #=n

p subshell

300

transition elements, period #-1=n,  5 orbitals

d subshell

400

how much energy is required to remove a valence electron, increases to the right and increases up

ionization energy

500

located in the outer most shell (n)

valence electrons

prefix multipliers and sig figs

100

1 x 10 ^-9

nano

200

what is an exact number? how many sig figs?

results from counting, infinite

300

1 x 10^-1 

deci

400

when are trailing zeros significant?

when a decimal is there

500

adding/subtracting sig fig rule

furthest to the left (place number)