Why are some elements more dense than others?

• Density of an atom depends on:
• The Number of particles (protons, electrons, and neutrons) in the atom
• The electromagnetic force between the protons and the electrons in the atom.
• The stronger the force between the protons and electrons, the more densely/tightly packed the atom will be.
• The Neutrons get in the way of this force

Task: Analyze and Interpret Lab

1. In partners to help ensure reliable data.
2. Send one person to pick up a kit. Each kit has a sample of Silicon (Si).
3. When done measuring Silicon, send a partner to get another metal sample.
4. Follow the 4 questions/prompts on page 3 to analyze your data.