Matter
the smallest part of a substance that can still be recognized as a substance
atom
The atomic particle that determines the element
proton
The location on the periodic table where atomic radii are the smallest
Top right
the vertical columns on a periodic table that share similar properties
Families
A substance that contains only one type of atom
Element
Any characteristic that can be determined without changing the substance’s chemical identity.
physical property
The subatomic particle that adds almost nothing to the atomic mass
electron
The location on the periodic table with the lowest electronegativity
Bottom left
The horizontal rows on a periodic table that increase sequentially.
periods
Water is an example of what kind of substance
pure substance
Any characteristic that can be determined only by changing a substance’s molecular structure.
chemical property
The type of atomic model that shows all electrons on drawn orbitals
Bohr Model
The amount of energy it takes to remove an electron from a gaseous atom or ion
Ionization energy
The number at the top of the square on the period table
Atomic number
a substance with two or more different atoms chemically bonded is called a
compound
does not have a definite shape or volume, but takes the shape of its container
gas
The atomic model that shows only valence electrons on the atomic symbol
Lewis dot
A measure of the tendency of an atom to attract a bonding pair of electrons.
Electronegativity
Column 2
a substance dissolved in another substance
solute
does not have a definite shape, does have a definite volume and takes the shape of its container
Liquid
The electrons on the outermost orbital
Valence electrons
Energy required to add an electron to an atom
Electron affinity
The family of elements with a full outer orbital of electrons
Noble Gases
Soil is what type of mixture
Heterogenous mixture