basic components
anything that has mass and takes up space
Matter
Runs north to south
Columns
a solid material that is typically hard, shiny and a good conductor of heat and electricity
Metal
Consists of protons and neutrons
Neucleus
React easily with other elements found in nature but are not found freely in nature
Alkaline earth metals
Basic block of matter: made mostly of empty space
Atom
runs east to west
rows
can bond with other elements; less reactive than other metals; several common oxidation states.
Transitional metals
Negitively charged particles
Electron
reactive nonmetallic; form strongly acidic compounds with hydrogen from which simple slats are made
Halogens
A substance made of one type of atom
Element
a sires of elements that form a horizontal row in the periodic table
period
An element that is a poor conductor of heat and electricity
nonmetals
Neutrally charged particles
Neutrons
Occur naturally; don’t like to react with other elements form compounds readily colorless, odorless, tasteless
Noble gases
Made up of one type of atom
Molecule
A series of elements that form a vertical column in the periodic tabel
group/ family
Brittle solids with same properties of metals and nonmetals
Metalloids
Area where the electrons are located float around around the necleus
Electron cloud
Elements that don’t seat by themselves. Bond to themselves or another element
Diatomic elements
Combination of 2 or more elements
Compound
An arrangement of the elements to in order of their atomic numbers so that elements with similar properties fall in the same column.
Periodic tabel
very reactive metals; good conductors of heat and electric. can explode if exposed to H2O
Alkali metals
Isotopes