Lab Safety
If an accident happens, you should do this immediately
Inform teacher
Pure substance
element
Positively charged particles found in nucleus
Proton
Good conductors of heat and electricity
metals
Semiconductors
metalloids
What you should wear when working around chemicals to protect your eyes
googles
two elements combined chemically
compound
Negatively charged particles found in orbits
electron
Smallest class of elements
metalloids
From compounds with group 2
halogens
Correct way to check the odor of a substance
Wafting
Force that causes water to form droplets
surface tension
Neutral charged particles found in nucleus
neutron
Highly reactive group of elements
alkali metals
class of elements that contain all 3 states of mater
metalloid
What you should do with long hair
Tie back
resistance of liquid to flowing
viscosity
# of protons
atomic number
Group of nonreactive elements with full valence electron shells
noble gases
only liquid metal
mercury
How to mix acid and water
Pour acid into water
two or more substances combined physically
mixture
mass of 1 atom of element
atomic mass
Ability to form sheets
malleability
only liquid nonmetal
bromine