Chemistry Unit 2 notes
Subject:
Chemistry [1]
Family- A column (the things up and down) in the periodic table.? Elements in the same group tend to have the same properties.? These are also called "families". ? group:? A column (the things up and down) in the periodic table.? Elements in the same group tend to have the same properties.? These are also called "families". ? period:? A row (left to right) in the periodic table. ? alkali metals:? Group I in the periodic table. ? alkaline earth metals:? Group II in the periodic table. ? halogen:? The elements in group 17.? They're really reactive. significant figure:? The number of digits in a number that tell you useful information. ? ionization energy:? The amount of energy required to pull an electron off of a gaseous atom.