Periodic table
This element has a chemical symbol of "O"
Oxygen
The central part of an atom where protons and neutrons are found
Nucleus
The number of particles in 1 mol, also known as Avagadro's number
6.02x10^23
The 3 main states of matter
solid, liquid, gas
This element is less dense than air and is often used to fill party balloons to allow them to float
Helium
This element is represented by the chemical symbol "Au"
Gold
The molecular formula for carbon dioxide
CO2
This scientists number, 6.02x10^23, tells us how many particles are in one mole
Avagadro
evaporation
the chemical formula/scientific name for table salt
NaCl
This element has a chemical symbol of "K"
Potassium
The charge of an electron
The unit used to measure the amount of a substance
mole
The state of matter that has a definite volume but not a definite shape
liquid
This element is added to toothpaste to help prevent cavities and is also the most electronegative atom on the periodic table
Fluoride
The only metal that is liquid at room temperature
Mercury
The name for electrons on the outermost shell of an atom
valence electrons
The molar mass of oxygen
16 g/mol
The point at which a liquid becomes a gas
boiling point
This metal is used in jewelry and computers, is a good conductor, and is one of the most valuable elements
Gold
The name for elements in group 18
Noble gasses
The name for an atom that has gained or lost electrons
ion
What is the mass of 2 mols of hydrogen gas (H2)
4 grams
The process by which a solid turns directly into a gas
sublimation
The chemical reaction responsible for turning various metals rusty when left outside in the rain
Oxidation