Chemistry 1.1

Atomic Structure and the Periodic Table:

Atoms, Elements and Compounds:

Atom- the smallest part of an element that can exist.

Element- a substance which contains only one type of atom. (H, Cl)

Compound- formed by two or more elements by chemically combined. (HCl)

   ↳ Compounds can only be seperated back into elements by chemical reactions. 

Mixtures:

Mixture- two or more elements or compounds which are NOT chemically combined

   ↳ Mixtures can be seperated using 3 seperation techniques:

               1. Filtration- used to seperate insoluble solids from liquids through filter paper 

               2. Simple distillation- used to seperate the liquid from a solution (water from salt +                               water) by heating the solution…