ATOM / ELEMENT
This particle has a negative charge.
Electron
Symbol for Gold
Au
Butane contains this many carbon atoms
4
Matter with no definite shape or volume.
Gas
This tool measures temperature
Thermometer
The mass number equals protons plus these particles.
Neutron
Elements are arranged by increasing this number.
Atomic Number
The simplest hydrocarbon is CH₄
Methane
Water freezes at this temperature in Celsius.
The SI unit of volume commonly used in chemistry.
Liter
The most abundant element in the universe.
Hydrogen
The element with the symbol Fe.
Iron
The equation H₂ + O₂ → H₂O must be this before it is correct.
Balanced
Dry ice undergoes this phase change.
Sublimation
This tool is used to determine pH.
pH paper or pH meter
The maximum number of electrons in the first energy level.
2
This metal is liquid at room temperature.
Mercury
The general formula for alkanes is this.
CₙH₂ₙ₊₂
The state of matter found in lightning.
Plasma
Neutral pH level
7
The element with 17 protons.
Chlorine
Silicon is classified as this type of element.
Metalloids
The formula C₂H₄ represents this alkene.
Ethene
The amount of space matter occupies.
Volume
The rule stating atoms seek eight valence electrons
Octet Rule