16 terms

mart science terms 1

charged particle that has either more or fewer electrons that protons
Ionic bond
attraction formed between oppositely charged ions in an ionic compound
process in which electrolytes dissolve in water and separate into charged particles
compounds with identical chemical formulas but different molecular structures and shapes, which can affect physical properties such as melting points
atoms of the same element that have different numbers of neutrons
SI unit of energy
Kinetic theory
explanation of the behavior of molecules in matter; states that all matter is made of constantly moving particles that collide without losing energy
Law of conservation of energy
states that energy can never be created or destroyed
group of biological compounds that contain the same elements as carbohydrates but in different arrangements and combinations; includes saturated and unsaturated fats and oils
amount of matter in an object
Mass number
sum of the number of protons and neutrons in an atom's nucleus
Melting point
temperature at which a solid starts to liquefy
element that typically is a hard shiny, solid, is malleable, and is a good conductor of heat and electricity
Metallic bonding
occurs because electrons move freely among a metal's positively charged ions and explains properties such as ductility and the ability to conduct electricity
element that shares some properties with metals and some with nonmetals
small molecule that forms a link in the polymer chain and can be made to combine with itself repeatedly