1. Unit 2 – Intro to Chemistry
King William High School
Mrs. Fulks

2. Periodic Table
PROJECT – “Wanted Poster” (This is you test grade this unit & is due 9/30 – 10/1)
You must know symbols for elements 1-36, 47, 50, 53, 54, 74, 79, 82 & 92
Element symbol quiz is 9/30-10/1!

3. Chemistry …is the study of matter.
Organic – carbon containing compounds
Inorganic – all substances not classified as organic (what we will do mainly in this class)
Physical – properties and changes of matter and its relationship to energy

4. Chemistry… Analytical – ID of compounds
Biochemistry – substances and process in living things
theoretica;l – using math and computers to better understand new compounds

5. Matter and its Properties
Matter – anything that has mass and volume
Mass – the amount of matter present
Volume – the amount of space an object occupies

6. Building blocks of matter
Atom – smallest particle of matter that retain properties of an element
Element – a pure substance made of only one kind of atom
Compound- different types of atoms combine
Molecule – base unit of the compound

7. Properties of matter
Extensive – depend on the amount of matter present (mass, volume, length)
Intensive – remain the same regardless of sample size (MP, BP, FP, texture, density)
Physical – measured of observes without changing composition (color, texture, shape, BP, MP, FP)
Chemical – when a substance undergoes a change into another substance (iron rusting)

8. Changes in matter
Physical – does not change atom ratio usually a change in state
Chemical – a reaction where a substance is altered

9. States of matter Solid – definite volume and shape
Liquid – definite volume…NOT shape
Gas – Neither definite volume nor definite shape

10. Classification on matter
Pure substances – elements or compounds
Mixtures – combination of two or more pure substances
Homogeneous mixture – uniform throughout (SOLUTION)
Heterogeneous mixture – not uniform throughout

11. Periodic Table
Groups – vertical columns (also called families)…they share chemical properties
Periods – horizontal rows
Lanthanides & actinides

12. Types of elements
Metals – good conductors of electricity (heat), ductile and malleable
Nonmetals – poor conductors of electricity (heat)
Metalloids – on the staircase…has the characteristics of metals and nonmetals
Noble gases – (group 18)…inert (unreactive)