Labs & More
6.02 x 1023 particles
What is a mole?
Name for rows
What is a period?
Tendency of atoms to have eight electrons in their outer shell
What is the octet rule?
Electrons in an atoms outer shell
What are valence electrons?
Base unit of mass in SI units
What is a kilogram?
Mass divided by volume
What is density?
Equal to the number of protons in an element’s atom
What is atomic number?
Atom without one or more electrons; has a positive charge
What is cation?
Simplified model of the atom that shows electron energy levels
What is a Bohr Model?
Boiling water is an example
What is a physical change?
Common name for NaCl
What is table salt?
Elements found on the left side of the table
What are metals?
Regular repeating structure of ionic compounds
What is a crystal lattice?
Simplest representation of an element’s valence electrons
What is dot notation (dot structure)?
Burning wood is an example
What is a chemical change?
Cu2S
What is copper sulfide?
Groups 1, 2 and 13-17
What are main group elements?
Model describing how metals share valence electrons
What is "sea of electrons"?
Core electron effect on outer electrons
What is shielding?
Substance made of more than one element
What is a compound?
Describes ease of electron flow
What is conductivity?
Feature of elements that decreases from left to right
What is atomic radius?
Forming molecules by sharing electrons
What is a covalent bond?
Relationship between force, charges, distance
What is Coulomb's Law?
Milk is a type of this mixture
What is a colloid?