The chemistry of life The nature of matter Section 2.1

What’s the Matter? 1. Give an example of solid matter. 2. Give an example of liquid matter. 3. Give an example of gaseous matter. 4. Is all matter visible? 5. Does all matter take up space?

Chapter 2 Big Idea Matter and energy Chapter 2 What are the basic chemical principles that affect living things? 2.1 What is the matter in organisms made of? 2.2 Why are the properties of water important to living organisms? 2.3 How do organisms use different types of carbon compounds? 2.4 How do chemicals combine and break apart inside living things?

Atoms What three particles make up an atom? – Proton – Neutron – Electron

Elements and isotopes Isotope – atoms of the same element that have the same number of protons, but different number of neutrons.

Chemical compounds How do compounds differ from the elements found in them? Compounds have chemical and physical properties that are different from the elements they are composed of.

Chemical Bonds We look mostly at two different types; 1.Ionic – are formed by the transfer of electrons. 2.Covalent – are formed by the sharing of electrons.

What type of bond is this?