Week 3 Lab 1

Periodic Table

*need to be plugged into the internet

Mendeleev’s Periodic Tables

• Which of Mendeleev’s tables looks more like the modern table in your course pack?

• What trends do you observe?

Safety Top 10

10. Avoid distractions

9. Work defensively

8. Beware of glass; it breaks

7. Work safely6. Know what to do if there is an accident5. Be prepared4. Don’t touch, taste, or smell the chemicals

Safety Top 10

3. Dress like a chemist

2. Do not ingest anything (food, gum, water)

1. Wear safety goggles at all times

Safety (Cont’d)• Knowledge (where do you get more info?)

– Aldrich – CRC – MSDS:  MSDS for sodium metal

• What are some potential health effects if inhaled or swallowed? • What first aid measures should be taken? • If the sodium catches on fire, how should it be put out? • How do you clean up a spill? • How should you store it?  (What does it react with?) • What PPE (personal protective equipment) should you wear? • What are some of its physical properties? • How toxic is sodium metal? • What other information is available on the MSDS?

• Waste