Vocabulary Review

Vocabulary ReviewThe vertical columns of the periodic tableGroupsAnything that has mass and takes up spaceMatterA type of homogenous mixture formed when one substance dissolves in anothersolutionsWhen matter changes its property but not its chemical naturePhysical changeGoing to a liquid to a solidfreezingBasic building block of matteratomsAn element that has some characteristics of metals and some characteristics of nonmetalsmetalloidThe amount of space that matter in an object occupiesvolumePure substance that cannot be separated into simpler substance by physical or chemical means (consist of one type of atom)ElementThe electrons in the outer energy level of an atomValence electronsGoing from a solid to a liquidmeltingThe measure of the force of gravity on the mass o an objectweightPure substance composed of two or more different elements joined by a chemical bondcompoundNot very well mixedheterogeneousHorizontal rows of elements in the periodic tableperiodsHow many protons are found in the nucleus of an atomAtomic numberWhen the number of neutrons is more or less than the number of protonsisostopeGoing from a liquid to a gasevaporationThe amount of matter in an object; always constantmassA combination of two or more pure substances that are not chemically combinedmixturesWell mixed; example- salty waterhomogeneousGoing from a gas to a liquidcondensationChangers matter undergoes when it becomes a new or different matterChemical changeThe number of protons and neutrons togetherAtomic weightA model used to draw elementsBohr Model