Chemistry, Earth History, Infectious Diseases
Chemistry- 8.P.1- Understand the properties of matter and changes that occur when matter interacts in an open and closed container.
Chemistry properties- a characteristic that you can only observe by changing the identity of the substance
Physical change- wood, chipper, painting object, state change
Chemical change- baking a cake frying an egg digestion burning wood
Elements- made of i type of atom. cannot by separated in to simpler substance by physical or chemical means. Located on the periodic table.
groups and periods- Groups- are organized by the reactiveness of the element
periods- are organized by the # of electron clouds surrounding the nucleus.
metals non metal metalloids the metal are separated from the non metal.
atomic number atomic mass proton neutron and electron