1. Chemistry

2. What is Chemistry?
Chemistry – study of the makeup, properties of a substance and changes they undergo
WHY?

3. What is a chemical? Sugar Water Blood
IN TERMS OF CHEMISTRY – ANYTHING CONTAINING MATTER IS A CHEMICAL

4. Branches Organic Inorganic Physical Biochemistry
substances with Carbon & Hydrogen
Inorganic
ALL things without Carbon
Physical
Study of properties, transformations and relationships between energy and matter
Biochemistry
All things occurring in living things

5. Qualitative vs. Quantitative
Qualitative – Non Numerical descriptions
Quantitative – Numerical descriptions

6. Using this data – we know about matter
Anything that has mass and occupies space
What is it made of?

7. The Atom Dalton – first model (1820s)
Assigns weights to elements
SOLID AND INDESTRUCTIBLE
Thomson – Solid mass with negatives
Blueberry Muffin model
Rutherford – Gold Foil Experiment
Names positive charged – Protons

8. HISTORY Rutherford Chadwick Knows Hydrogen is smallest
Gives it atomic mass of 1
1 proton 1 electron
Weight is still off?
Chadwick
Shoots particles at Parafin Wax
Some protons bounce out?
Neutrons – same mass as proton, no charge