Elements of Chemistry Chapter 17

Chemistry is Known as the Central Science. Chemistry is the study of matter and the transformations it can undergo.

The Submicroscopic World is Super-Small Everything around us is made of atoms. Atoms combine to form molecules.

Phases of Matter

Phases of Matter Can Change

Matter has Physical and Chemical Properties Properties that describe the look or feel of a substance is a physical property. During a physical change no new substance is made.

Matter has Physical and Chemical Properties

Matter has Physical and Chemical Properties

Matter has Physical and Chemical Properties A chemical property is the ability of a substance to react with other substances. During a chemical change, there is a change in the way the atoms are chemically bonded to one another.

Matter has Physical and Chemical Properties

Matter has Physical and Chemical Properties

Matter has Physical and Chemical Properties

The Periodic Table Helps Us to Understand the Elements

Periods and Groups Each horizontal row is called a period. Each vertical column is called a group or family.

Groups

Elements Can Combine to Form Compounds When atoms of different elements bond to one another, they make a compound. A compound is represented by its chemical formula.

Naming Ionic Compounds The name of the element to the left, is followed by the name of the element to the right, with the suffix “-ide” NaCl – Sodium Chloride MgF2- Magnesium Fluoride