Physical Science 2 Unit 1 Day 3

Objective: Interpret and synthesize trends and patterns in the periodic table using Claim-Evidence-Reasoning.

Do Now Questions:

1. What do you think makes atoms unstable?
2. Which atoms on the periodic table are most unstable? Least?
3. How can I tell the number of valence electrons using the periodic table?

Exit Ticket: Elements in the same group tend to have similar properties. What do you predict will be the density's of the other elements in group 4A? Explain why you think so.